Tag Archives: UV LED

Make an inexpensive & simple UV LED Torch

From our friends at instructables comes an easy project for use with UV LEDS. To make this simple project, here's what you'll need: 2 Ultra Violet LEDS 1 1/4W resistors (the value of the resistor needs to be calculated based on the forward voltage of the LED you use) 1 non-working 9V battery (or a 9V battery clip) 1 new 9V battery Pliers Solder Soldering equipment The full instructions on the Instructables site will show you how to put everything together. Once assembled, the light snaps Read more [...]