347V/380V/400V 600w electronic ballast 1)OEM&ODM Products Offered 2) ... , End of life of bulb Protection and so on.AdvantagesHigh Output Voltage Limited, the ignition current is smaller. Made with brand ... us.Best RegardsDavid SongSales ManagerQidong Sunkan Electronic Co.,LTD. 347V/380V/400V 600W electronic ballast for hydroponics/greenhouses,UL,CE,TUV ...