Specification:Supply Voltage: AC85~265VFrequency: 50HZAC Power Range: 0~1000WAC Power Precision: 0.5%Size:247*119*40mmColor:white Features:Use E27/E14/GU10/ and "AC load" to access the test products.Input AC voltage, input AC current, and input power can be tested.This LED checkerboard use fuse for explosion protection, very safe to use.Made of high quality materials, durable to use.Simply plug-in your LED into the correct holes and push the button to test.