LED tester -for 3mm 5mm 8mm 10mm piranha LEDs 2-4pin 2-150mA -used for testing LEDs' brightness, illuminant color, etc., -Handy device for testing LED (2~150mA) -The top row is for 2-pin LED with current range from 2mA~30mA -The bottom row is for 4-pin LED (piranha LED) with current range -from 20mA~150mA -Power Supply: 1 x 9V Battery (not included) -Lightweight and compact -Material: Plastic -Dimensions: 3.15 in x 2.17 in x 0.87 in (8.0 cm x 5.5 cm x 2.2 cm) -Weight: 1.27 oz (36 g)