... is the information of our products.1.Specifications of 1000W electronic ballast Main Input Voltage120V/208V/220V/230V/240V ... brand compponents, more stable quality, longer life time.347V 1000w electronic ballasts offered by requests.For more products information, ... Best RegardsDavid SongSales ManagerQidong Sunkan Electronic Co.,LTD. 347V 1000W HPS electronic ballast for hydroponics/greenhouses,UL,CE,TUV ...