Portable LED Tester Test Box Mini Light-emitting Diode Bulb Lamp 2~150mA brand new and high quality Material: Plastic Color: White Handy device for testing LED's. Simply plug your LED into the correct holes (all of which are marked) and push the button to see its brightne, 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 brightne, 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 Lightweight & compact Powered by a 9V battery (not included) Item size(L*W*H) : Approx. 8 x 5.5 x 2.2cm / 3.15" x 2.16" x 0.87" Quantity: 1PC Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!!