... at least 10% UL/CUL/CE /FCC 1000W HPS/MH Electronic Digital Ballast for plant grow / hydropnics lighting ModelNB-HPS/ ... , silver, blackinput Power1050W± 5%Dimmable4 phase manual dimming, 110%,100%, 75%, 50%Output Power1000WMax THD<10% Max input current10AEfficiency of ... 70w,100w,150w,250w 400w,600w to 1000w.Smart electronic ballast Multi-Voltage (100-265V),integrated and intelligent controling by MCU,no ...