LED Tester Box Mini Light-emitting Diode Piranha tester BOX 2~1.RM Features: LED Handy Test device, simply plug your LED into the correct holes (all of which are marked) and push the button to see its brightness, illuminant color etc. Handy device for testing LED's (2-150mA) Simply plug your LED into the correct holes (all of which are marked) and push the button to test its brightness, illuminant color etc The top row is for 2 pin LED's with currents ranging from 2mA - 30mA The bottom row is for 4 pin LED's (piranha LED's) with currents ranging from 20mA - 150mA Powered by a 9V PP3 battery (not included) Item size: Approx. 8*5.5*2.2cm (L*W*H) Color: White Package included: 1 x LED Tester