... Function50%-75%-100%-110%/Super LumensSaving Energy40%~50%Designed life for ballast6 YearsFactory Warranty2 YearsProtectionHot Start Protection, Short Circuit Protection ... life time.400V 600w electronic ballasts offered by requests.For more products information, please feel free to contact us ... Sunkan Electronic Co.,LTD. 400V 600W electronic ballast for hydroponics/greenhouses,UL,CE,TUV,DIN approved