Whadda LED kit LED-Buddy.

The LED buddy can help you design all electronic circuits that contain one or more LEDs. Hold any type of LED toward the LED buddy's contact pads to start the process. It detects the polarity of the LED, measures the forward voltage and automatically calculates the series resistances that you need to use. The compact size and durable materials ensure that this useful tool is the best mate anyone can have. No more call messages! This text is machine translated.