400V 600w electronic ballast 1)OEM&ODM Products Offered 2)High- ... . Made with brand compponents, more stable quality, longer life time.400V 600w electronic ballasts offered by requests.For more products information ... contact us.Best RegardsDavid SongSales ManagerQidong Sunkan Electronic Co.,LTD. 400V 600W electronic ballast for hydroponics/greenhouses,UL,CE,TUV,DIN ...