... A Good regulation against supply voltage variation Suitable for HPS/MH bulb of America and Europe st ... -265V Dimming 4 phases at: 50%, 75%,100%,110% Suitable for HPS/MH bulb of America and Europe ... 15m8) Dimmable: 4 phase manual dimming, 110%, 100%, 75%, 50%(optional)9) Prolong lamp life at least 10 ... export experience, and can design unique hydroponics products for you at the same time. We believe that ...