... 50%, 75%,100%,110% Suitable for HPS/MH bulb of America and Europe standardComprehensive protection: short-circuit/ ... lighting distance: 15m8) Dimmable: 4 phase manual dimming, 110%, 100%, 75%, 50%(optional)9) Prolong lamp life at least 10%10)Energy-saving ... we mainly produce ventilation, lighting equipment, tents, reflectors and other hydroponics products. We have two offices and three factories(most ...