The simple Diode and LED Tester presented here costs under £5 to build (including all components, the battery and a cheap case) and will indicate the polarity of almost all types of LED and other ...
InertiaLED is a new company that makes LED light towers that work with the BMW, KTM and other CAN bus systems. No additional CAN bus load resistor (review)is required, as it is for other types of LEDs ...