... is the information of our products.1.Specifications of 400W HPS electronic ballast Main Input Voltage120V/208V/220V/230V ... brand compponents, more stable quality, longer life time.400V 400w electronic ballasts offered by requests.For more products information, ... Best RegardsDavid SongSales ManagerQidong Sunkan Electronic Co.,LTD. 400V 400w HPS electronic ballast for hydroponics/greenhouses,UL,CE,TUV, ...