Micro USB Lamp Kit
Very bright 1W LED lamp kit, which takes power from a micro USB phone charger. Suitable for KS3. This kit allows you to build an economic mains powered lamp that takes power from a standard 5V micro USB phone charger (not included).
The kit comprises a very bright 1W Power LED which connects (with the cable provided) to a PCB that has a power switch, micro USB connector and power resistor.
All that is required to assemble the kit is to connect the LED to the desired length of cable and solder the resistor to the board.