400W New Design HPS/MH Electronic Ballast With Fan Multi-Voltage:AC100-265V Dimming 3 phase at:50%,75%,100% CE,FCC,UL,CUL 400W New Design HPS/MH Electronic Ballast With Fanhorticulture; hydroponic; ballast; electronic ballast Unique design of circle housingUnique cooling structureUnique push and pull fixtureUnique shell surface without screwsSuitable for HPS/MH bulb of American and Europe ...