Tag Archives: LEDS

Multicolored LEDs Create Secondary Colors

Any student of physics knows mixing two primary color light sources produces a secondary color. For instance, mixing the primary colors red and green creates the secondary color yellow. There are three primary colors—Red, Blue, and Green. This process is easily seen in tricolor and RGB LEDs.

There is a disadvantage in this method. As two primary colors are necessary for generating a secondary color, two LEDs must remain turned on at the same time. Therefore, generating a secondary color means consuming twice the current a primary color requires. In battery powered circuits, the operating current of the LED indicator may be a significant fraction of the total current, and using the same current for generating both primary and secondary colors would be an advantage.

Using a sequencing method can generate balanced secondary colors from RGB, tricolor and bicolor LEDs, while using the operating current of a single LED. The sequencing method offers uniform intensities between the primary and secondary colors, and lower power dissipation. An added advantage of using the sequencing method with bicolor LEDs is keeping a simple pc-board layout with two pins while it produces three colors. Using the sequence method with RGB LEDs produces white light while consuming the operating current of a single LED.

The sequencing method works because it takes advantage of a property of the human eye. This is called persistence of vision, wherein images in the human eye persist for about sixty milliseconds after light from the object ceases to enter the eye. For instance, when a glowing coal is moved about in the dark, the eye sees a continuous red line.

When the human eye sees different primary colors flashed sequentially and quickly from one point, they appear to overlap in time, while the brain interprets the colors to be secondary colors, or, depending on the color components, even white.

Experiments with multiple primary-colored LEDs show that the above flash sequence should repeat every 25 milliseconds or lower, for the eye to treat the effect as a solid secondary color. In fact, the flash rate can go down to one microsecond, before the human eye can detect the degradation of the secondary color. Therefore, any clock source, say a convenient 40 Hz, should be adequate for creating secondary colors.

For the eye to properly see the mixed colors, the primary-color LEDs must be physically very close together, such as on a semiconductor chip. As an added advantage, diffused lenses are better, as this offers a wider viewing angle.

When using bicolor LEDs, the driver has to be bidirectional, as the LEDs are placed back-to-back in the chip. Moreover, currents for the three LEDs may have to be adjusted to achieve color balance between the primary and secondary colors. In addition, color balancing may be required also as LEDs have different intensities and efficiencies as the human eye sees them.

This correction can be done in one of two ways. As each LED has a current limiting resistor in series, the value of these resistors may be tweaked to achieve the necessary differentiation in individual currents. The other option is to keep the same current but tweak the duty cycle.

Quadriplegics Can Control Exoskeletons with Their Brain

Artificial limbs help people who have lost a part of their arms or legs to regain partial functionality of their extremities. However, for those who have lost control of a major part of their bodies and thus rendered quadriplegic, artificial limbs are not of much use. For addressing such and other whole-body disabilities, exoskeletons are showing great promise.

Scientists working at the Technische Universitat Berlin and Korea University are creating such lower-limb exoskeletons. The control system here is completely hands-free. Rather, it is a brain-to-computer interface, which controls the exoskeleton, by decoding and making use of signals from the wearer’s brain. According to the researchers, volunteers who were given the exoskeleton to use took only a few minutes for learning to operate the system. Therefore, substantially paralyzed people may hope to walk again with the help of this exoskeleton.

Research on such exoskeleton systems is not new and several types are in development and in limited production in many parts of the world. However, most achieve controls by detecting subtle movements in the upper body of the wearer. However, the difference in the KU/TU Berlin unit is the control is entirely dependent on brain signals. Therefore, this is useable even by a completely paralyzed person.

The human brain generates different signals when the person stares at a specific LED. These signals are detected and interpreted to be used for controlling the hands-free exoskeleton. An EEG brain control interface connects wirelessly to the main computer of the control system.

In actual practice, the wearer stares at any one of five flashing LEDs. This initiates waves in the wearer’s brain and an electroencephalogram or EEG worn as a cap reads the signals. Because each LED flashes at a different rate, focusing on any one at a time produces a specific signal pattern in the brain of the user corresponding to a desired mode of movement. The computer system interprets the readings of these signals sent to it from the EEG cap and converts them to system instructions for operating the exoskeleton.

As this method of control does not require detection of movement from any other body part, it is eminently suitable for even those who have lost the capacity for voluntary body control, except for eye movements. Ordinarily, such people would not be able to use or control a standard exoskeleton. According to the researchers, their system has a much better signal-to noise ratio.

The brain generates signals depending on external signals it receives from its surroundings. This acts like noise to the actual control signal desired for movement. By concentrating on a flashing LED, the researchers are effectively separating the user’s brain control signals from being cluttered with external stimuli. The result is a more accurate exoskeleton operation than what a conventional hard-wired system could have achieved.

Exoskeleton systems are notorious for creating loss of electrical noise, especially affecting the EEG signals. However, the frequency of the flickering LED acts as a filter to separate the EEG signal effectively. This exoskeleton system helps people with high spinal cord injuries or those with motor neuron disease who face difficulties in communicating or using their limbs.

Pi Lite: Bright White LED Display with the Raspberry Pi

If you did not know, you can run many LEDs with the tiny, credit card sized single board computer popular as the RBPi or Raspberry Pi. Among the many accessories made for the RBPi using LEDs, Ciseco makes one that is very interesting and useful. This is a display panel using bright white LEDs and aptly named the Pi Lite. You can use the series of white LEDs on the Pi Lite as a scrolling marquee for a Twitter feed, for displaying real-time weather information or stock quotes. You can use it to display static information such as time or functional information such as bar graphs, or other dashboard type applications such as VU meters. On the other hand, you could even play such games as Pong. Pi Lite is strong enough to view in direct sunlight.

Pi Lite is completely self-contained and does not require any soldering. You can get Pi Lite in two colors – white and red. For operation, simply connect Pi Lite to the GPIO pins of the RBPi, and you are set. GitHub has several open-source projects that you can download or you could do your own programming using Python code.

If you are just starting out with the RBPi, Pi Lite is an exciting way to let RBPi do some physical work and generate some fun. The large LED matrix display is easy to plug in and add-on. Since no soldering or any other special skills are needed, anyone can simply start using the Pi Lite for their project.

All the 126 LEDs on the Pi Lite are in the form of a 14×9 matrix, with an ATMega328p processor controlling them. This mixes the highly popular LOL or Lots of LEDs shield of Arduino with the world of RBPi. The Pi Lite communicates with the RBPi via the standard serial communication protocol at 9600bps. That makes it a simple affair to send graphics and text to the LED matrix. With the ATMega processor driving the 126 LEDs, the RBPi processor and its GPIOs remain free for other functions.

The Pi Lite offers several advantages. You can read your emails or tweets from a distance in real time. The firmware being open-source, you can add extra functions as you like. You can achieve multiple functions by sending simple text strings – scroll the text, VU meter, bar graph and or graphics. You can use the well tried, tested and supported LOL shield by Jimmy Rogers. The serial interface makes Pi Lite useful for connecting to any TTL micro radio or PC interface – you can use the popular FTDI cable.

The Pi Lite uses a high quality gold plated PCB. No extra power supply is required, as Pi Lite draws only 49mA maximum at 5VDC, so the RBPi supply can power it. With preloaded software, you can use it out of the box and display variable speed scrolling text, 14 vertical bars as a bar graph, two horizontal bars as VU meter, frame buffer for animation and graphics, or turn on or off individual pixels.

To make a bigger display, you can link up additional Pi Lites with the I2C bus. Each Pi Lite measures 85x55x13.7mm.

Why is Li-Fi better than Wi-Fi?

Imagine wandering through an art gallery with your PDA. As you reach an interesting canvas, your PDA starts downloading information about the painting. When you move to another, your PDA displays content relative to the current piece of art. This is called content fencing – tailoring information to specific locations so that users receive information relevant to their current location.

Content fencing is impossible to achieve with Wi-Fi – radio waves have a far greater spreading power. However, this is eminently possible if electromagnetic waves of very short wavelength – such as optical beams – are used. We already have the necessary technology with us and it only requires converting LED bulbs into wireless access points as an equivalent of a wireless network. This is LI-Fi, allowing you to move between light sources for effectively remaining connected. At present, Li-Fi is only a complementary technology compared to Wi-Fi, but its potential benefits over Wi-Fi are huge.

Visible light spectrum has a huge bandwidth compared to the RF spectrum – in excess of 10,000 times. Moreover, visible light spectrum is unlicensed and free to use. RF tends to spread out over a large area causing interference, whereas, visible light can illuminate a tight area and can be well contained. This allows Li-Fi to attain over a thousand times the data density than Wi-Fi can achieve.

Low interference means more data can be transferred. Therefore, Li-Fi achieves very high data rates and devices using Li-Fi can have high bandwidths along with high intensity optical output. With illumination infrastructure already available in most places, it is relatively easy to plan for introduction or expansion of Li-Fi capacity with good signal strength.

The presence of illumination infrastructure also means negligible additional power requirements for Li-Fi, more so because LED illumination is inherently efficient. In comparison, radio technology requires additional components and energy to implement. Li-Fi works very well in water, but it is extremely difficult to implement and operate Wi-Fi underwater.

Even today, there is a raging debate about whether RF transmission is safe for life on Earth. Visible light does not court such controversy regarding health and safety, as it is the Sun’s rays that sustain life on Earth. Moreover, in certain environments, radio frequencies are considered dangerous as they can interfere with electronic circuitry. That is why people are asked to switch off their phones in flight.

The closely defined illumination area makes Li-Fi very difficult to eavesdrop. Unlike Wi-Fi that spreads its signals all over, even passing through walls, Li-Fi signals are confined to a specifically defined area. This makes Li-Fi far more secure as compared to Wi-Fi. Moreover, data flow in Li-Fi technology can be visibly directed according to requirement. You only need to point one device towards another to make them communicate. That makes it unnecessary to add a layer of security such as pairing, as is required for a Bluetooth connection.

Considering that LEDs operate more than 50,000 hours, it is necessary for manufacturers to add new services to the light they sell. Li-Fi offers massive new opportunities and myriad of different applications for the future communications market.

Connecting to the web via LEDs: Li-Fi

Connecting to the Internet is best done through copper wire or high-speed wireless connections. Not many are aware of an additional method – using light beams. This is accomplished not by the usual optical fiber stuff, but by using LEDs. Communication with lights is nothing new – it has been done before. The Scottish scientist, Sir Alexander Graham Bell had invented an arsenal of instruments for communication and these included Photophones.

The first instruments to use light for communication were Photophones. Now, after about 110 years after the invention of photophones and their fading into history, Professor Harald Haas is conducting experiments in wireless communication using light-centric technology. At the University of Edinburgh in Scotland, Professor Haas is using the Alexander Graham Bell building for his experiments.

Professor Haas demonstrated his vision for the future of wireless communication way back in 2011. He was using something as simple as LED bulbs for his experiments. This is also the time when the term Li-Fi was coined. Li-Fi is now used to describe bidirectional networked wireless communication using visible light as a replacement for traditional radio frequencies.

With people implementing the Internet of Things in full swing, it will not be very long before there is a spectrum crunch for the radio frequencies. In this context, light modulation and enabling connectivity through simple LED bulbs will have huge ramifications. Li-Fi can allow you to connect to the Internet as soon as you are within the range of an LED beam. Even your car headlights can be used to transmit data.

Professor Haas is working towards PureLiFi, which can offset the global struggle for the vanishing wireless capacity. PureLiFi is striving to develop and drive technology suitable for secure, reliable and high-speed communication networks. This will help to integrate data and lighting utility infrastructure seamlessly while reducing energy consumptions significantly.

One of the most interesting features of Li-Fi is its security over the conventional networking methods. Although Li-Fi is not yet available on the Internet marketing websites, companies from the security-focused fraternity are highly interested parties. That is because prying eyes of third-parties find Li-Fi significantly harder to infiltrate compared to other current networking technologies.

Li-Fi signals travel over narrowly focused beams and they cannot penetrate walls. Additionally, with LED lights, you have natural light beams; therefore, the uplink and downlink channels can be separated leading to increased security. For example, if you are browsing using two-channel Li-Fi, both beams will have to be intercepted for someone to infiltrate into your computer, provided they first gain entry into the same room as you are in.

In practice, Li-Fi networks use a desktop photosensitive unit to communicate with an off-the-shelf unmodified light fixture using infrared LEDs for its uplink and downlink channels. Within a range of about three meters, you can have uplink and downlink channels delivering a typical capacity of 5Mbps. With Li-Fi, it is possible to achieve speeds as high as 10Gbps as well. As an additional benefit, your workspace remains well lit.

Li-Fi allows you to have your content tailored before delivery. Within a single room such as in an exhibition, you could wander through various beams to pick up information relevant to your current location.

Battle the Sun with a 21W LED and a Raspberry Pi

Lighting up an LED or an array of LEDs and controlling their brightness is a simple affair with the tiny credit card sized single board computer popularly known as the Raspberry Pi or the RBPi. The RBPi runs a full version of Linux and you can use it to drive an array of bright LEDs with it. If you construct it like Jeremy Blum did – he put up the LEDs on his graduation mortar board and wore the RBPi on his wrist on his graduation day – you can be sure of getting a lot of excited remarks from friends and onlookers.

Jeremy wanted to let others interact with the LED on his cap. Therefore, he developed the idea of “Control my Cap” project. His control system consists or a wrist computer comprising an RBPi together with an LCD/button interface. That allows Jeremy to monitor the status of the cap, adjust the brightness of the LEDs, change the operation mode and toggle the wrist backlight. If there is any trouble in connecting with the LED interface, the reasons will be listed on the LCD.

The RBPi is programmed to connect automatically to a list of pre-allowed WPA-protected Wi-Fi hotspots as soon as it is booted. This allows Jeremy to set the wrist interface and the LEDs to a web-controlled mode, let the LEDs take on a static color or have them follow a rainbow color pattern. The cap has a total of 16 LEDs, rated at 350mA each, with four each of Red, Green, Blue and White in four strings. A constant current driver that has a PWM control drives each string of LEDs. A separate on-board switching controller generates the 5V for the RBPi.

As the whole project is portable, a battery powers it. Jeremy used a laptop backup rechargeable battery for his project. At full brightness, the array of LEDs consumes a total power of 21W and is easily visible is bright sunlight. With an 87 Watt-hr. capacity, the battery is able to power the cap for an entire day and more. Additionally, it has a 5V USB port, which Jeremy uses for charging his phone.

Jeremy put up a mobile website controlmycap.com to allow anyone to submit colors for the color queue of the cap to be used in the web-controlled mode. In this mode, the wrist computer grabs the 10 most recently submitted colors from the mobile site constantly, displaying them on the cap. Additionally, when using a color set for the first time, the RBPi informs the requester by a tweet that their color combination is about to be displayed. The RBPi communicates with the cap via a single USB cable, which doubles as it power supply cable as well.

Jeremy used the FoxFi app on his Samsung Galaxy S4 smartphone to generate a Wi-Fi hotspot and the RBPi was able to connect to the Internet through this. The remote webserver hosting the controlmycap.com website also stores the color requests in an MYSQL database, which the RBPi queries for updating its commands.

Battle the Sun with a 21W LED and a Raspberry Pi

Lighting up an LED or an array of LEDs and controlling their brightness is a simple affair with the tiny credit card sized single board computer popularly known as the Raspberry Pi or the RBPi. The RBPi runs a full version of Linux and you can use it to drive an array of bright LEDs with it. If you construct it like Jeremy Blum did – he put up the LEDs on his graduation mortar board and wore the RBPi on his wrist on his graduation day – you can be sure of getting a lot of excited remarks from friends and onlookers.

Jeremy wanted to let others interact with the LED on his cap. Therefore, he developed the idea of “Control my Cap” project. His control system consists or a wrist computer comprising an RBPi together with an LCD/button interface. That allows Jeremy to monitor the status of the cap, adjust the brightness of the LEDs, change the operation mode and toggle the wrist backlight. If there is any trouble in connecting with the LED interface, the reasons will be listed on the LCD.

The RBPi is programmed to connect automatically to a list of pre-allowed WPA-protected Wi-Fi hotspots as soon as it is booted. This allows Jeremy to set the wrist interface and the LEDs to a web-controlled mode, let the LEDs take on a static color or have them follow a rainbow color pattern. The cap has a total of 16 LEDs, rated at 350mA each, with four each of Red, Green, Blue and White in four strings. A constant current driver that has a PWM control drives each string of LEDs. A separate on-board switching controller generates the 5V for the RBPi.

As the whole project is portable, a battery powers it. Jeremy used a laptop backup rechargeable battery for his project. At full brightness, the array of LEDs consumes a total power of 21W and is easily visible is bright sunlight. With an 87 Watt-hr. capacity, the battery is able to power the cap for an entire day and more. Additionally, it has a 5V USB port, which Jeremy uses for charging his phone.

Jeremy put up a mobile website controlmycap.com to allow anyone to submit colors for the color queue of the cap to be used in the web-controlled mode. In this mode, the wrist computer grabs the 10 most recently submitted colors from the mobile site constantly, displaying them on the cap. Additionally, when using a color set for the first time, the RBPi informs the requester by a tweet that their color combination is about to be displayed. The RBPi communicates with the cap via a single USB cable, which doubles as it power supply cable as well.

Jeremy used the FoxFi app on his Samsung Galaxy S4 smartphone to generate a Wi-Fi hotspot and the RBPi was able to connect to the Internet through this. The remote webserver hosting the controlmycap.com website also stores the color requests in an MYSQL database, which the RBPi queries for updating its commands.

What is LED EOS failure?

LEDs, being semiconductor components, are susceptible to failure if overstressed electrically. This is true regardless of the manufacturer and electrical overstress or EOS is the leading cause of failure of LEDs. In fact, LED components are subject to transient conditions that can cause EOS and subsequently result in a catastrophic failure.

Like all semiconductor components, LEDs too have their maximum specifications of voltage, current and power. An exposure beyond the maximum current or voltage levels can lead to EOS. Typically, a current or voltage transient, accompanying the EOS event, may cause generation of localized heat – leading to EOS failure. As with any semiconductor device, an LED also has only a limited ability to survive overstress, and this is its maximum withstanding power.

EOS must not be confused with electrostatic discharge or ESD. Electrostatic discharge is the result of a rapid transfer of static electric charge between a non-operating part and an object at a different electrical potential. ESD events typically range from pico- to nano-seconds, whereas EOS events are much slower, ranging from milli-seconds to seconds. Moreover, EOS can be only a single event, an ongoing periodic event or even a non-periodic event. Common causes of EOS are:

• A driver producing current spikes
• A driver constantly driving an LED over its maximum rated current
• A lightning strike or similar power surge from the AC mains power input
• A user hot-plugging an LED into an energized circuit

Depending on the duration and amplitude of the overstress conditions, LED failures due to EOS can vary from subtle to severe damage. For example, an LED with subtle damage may not emit light at low currents, but does so at higher current levels. On the other hand, a severely damaged LED may not emit light at all. Both may exhibit current leakage, an open circuit or a resistive short. The amount of time that it takes for an LED to be damaged by EOS, depends on the conditions of the EOS, operating conditions and the LED junction temperature.

LEDs may be classified into three types – mid-power, high-power and COB. Test laboratories typically use square-wave pulses of forward current for simulating EOS conditions in LEDs. This allows variation of all test parameters such as voltage, current, power and time. For example, pulse power levels of up to 1700W may be applied to LEDs in forward-bias mode, while the time duration may range from 0.1 to 70 milliseconds.

Most mid-power LEDs are typically enclosed in a plastic package and contain either one or multiple chips. The multiple chips may be internally connected in parallel or in series. The EOS robustness of the device depends on the internal structure. As a thumb rule, LEDs with higher light output tend to be more robust to EOS.

The EOS robustness of high-power single-chip LEDs depends on their architecture. LED device structure, such as the packaging contacts, current spreading techniques and attachment of the die, are major contributors to determining temperature rise and power dissipation and hence EOS robustness.

COB or chip-on-board LEDs are similar to high-power single-chip LEDs, with one major difference. There are bond wires connecting the top-side contacts to the chips and metal traces for current spreading, resulting in lower withstanding power as compared to other high-power LEDs.

ByteLight LEDS provide location based service

Not so very long ago, the friendly neighborhood supermarket had a security guard who would greet you in recognition and the store assistants could guide you since they knew what you usually bought. However, the introduction of huge shopping malls with their multiple floors has done away with anyone able to recognize even frequent customers, making the whole affair of shopping completely impersonal.

However, things are about to change. GE Lighting and ByteLight are harnessing the next generation of LED lighting fixtures to communicate with the smart devices of shoppers while they are in-store. Very soon, shoppers will be greeted with personal messages starting from the parking lot. As shoppers move about within the store, they will receive an easy-to-follow map on their devices to help them optimize their shopping time. The store will offer repeat customers a personalized shopping list along with information on promotions and coupons based on their shopping history, current position and direction on the aisle.

Customers will be able to see reviews, play product information videos and connect with virtual associates on-demand to make their brand choice easier. ByteLight has developed this technology by combining VLC or Visible Light Communication, BLE or Bluetooth Low Energy and inertial sensors. They can determine not only the precise location of the shopper on the aisle, but even the direction the person is facing.

The patented ByteLight LED indoor location technology offers several advantages to both shoppers and retailers. It brings the retailer faster ROI as existing lighting infrastructure can be used and no additional equipment is necessary. It has an accuracy of three feet in determining the location and direction of the shopper anywhere there is light. It can connect to any shopper who has a mobile device equipped with Bluetooth and/or camera. ByteLight, being powered by the light fixture, does not require batteries and hence, is maintenance free.

According to Dan Ryan, the CEO and Co-founder of ByteLight, the value proposition for digital LED lighting is shifting from providing illumination to offering innovative services and applications. They are reinventing LED lighting to provide a platform for indoor-location services. Not only will this revolutionize the in-store shopping experience, LEDs will play a strategic role in the experience of customers in connected retail.

GE is providing the lighting fixtures that ByteLight will be using for their location-based services. It amply demonstrates how simple LEDs can be used beyond their traditional ROI of maintenance and energy savings to change the fundamental way of how people shop by combining information with location.

Shoppers will be using an opt-in application on their smartphones or tablets. The app will be powered by ByteLight and together with the indoor location technology embedded within the GE LED fixtures, will deliver to the shopper high value applications based on their current location and the items they are presently watching.

This comprehensive approach will help retailers reach out to an even broader number of shoppers across the largest area – starting from the parking lot and continuing anywhere within the store where there is LED light. That means, retailers will have continuous ROI on their GE lighting and at the same time, this will provide a strategic platform for the futuristic connected retail store.

The portable LED work light has an aluminum frame

Larson Electronics has launched a new portable LED work light rated at 150 Watts. It is mounted within an adjustable aluminum frame. Christened by the company as Explosion Proof, EPL-TFM-150LED-RT-100-2023 LED Light, It is rated for Class 2 Division 1-2 and Class 1 Division 1-2 in Groups C & D. The LED work light can generate light output of 12,000 Lumens for which it needs to draw a power of 150 watts only. The light head is 16 inches by 14 inches, mounted on a tubular frame made of light aluminum and has an easy to use handle provided at the top. The light covers an area of 9000 square feet.

The LED light produces a brilliant pattern and is most suitable for hazardous environments and enclosed areas. The light has a very wide range of application in a number of locations such as where there are ample amounts of dust, flammable gases and vapors prevalent. The LED light fixture is made of a 16 inches square head and there is a provision for 90-degrees adjustment upwards and downwards. The light can be focused and the position can be locked easily by loosening and retightening the two head screws, present on either side of the stand.

One of the main features of this LED light fixture is the provision of LED drivers that help in increasing the operational longevity. This fixture comprises twelve LED boards configured in a series of six banks. Every bank consists of two LED boards each with a specific driver. In case there is a driver failure in a bank, it will stop operating, while all the other banks will continue to function. In the same way, if there is an LED failure, the mating LED continues to function. These features are very helpful to the user in various locations where non-stop working very essential. There is no ballast box for the fixture and consequently there is no need for its replacement as well.

The LED lamp produces light output that has a 6000K color temperature rating. The color-rendering index is 70 and the details are very accurate when this LED light is compared to mercury vapor or high-pressure sodium lamps. Larson Electronics has provided the light with 100 feet long cord (SOOW) terminated in an explosion-proof, 20 A twist-lock plug that can work at either 125V or 250V, according to the needs of the customer. The lamp is T5 rated and is approved by the Design Lights Consortium. Even after it has been used for more than 60,000 hours, the LED light retains 80% of its Lumen capacity, which is much more than any incandescent or fluorescent lamp. With no UV, infrared or CO2 emissions, the light is very safe and is suitable for offshore applications, tank cleaning, oil field maintenance and repairs.

The Explosion Proof, EPL-TFM-150LED-RT-100-2023 LED Light from Larson Electronics is highly efficient and customer friendly. The company provides customer support and warranty for the lamp fixture. As the company is a leader in the LED lamp fixture, the new launch is expected to be a boon for the industry.