... ,400V 250W,320W, 400W,500W, 600W,800W,1000W CE,TUV,UL,CUL,GS approved No fans HID electronic ballast 250W,320W ... inside, water resistance and maintenance free operation.· Input voltage: 100V~277V, 400V· HPS/MH compatible Approval: CE, GS, TUV, UL.CUL Customized integrated ... grow light soluaitons are available 100V~240V,277V,400V.CE,TUV,GS,UL,CUL approved HID ...