1.Increase the lamps life up to 30% 2.exremely efficiency 99% power factor 3.Avialable 250W, 400W,600W,1000W 4.no fans HPS/MH 1000W digital/electronic ballast Extruded Aluminium housing dissipate heat and keepcomponents coolOperate for HPS/MH light systemDimmable 50%-75%-100%(110% super lumen optional)176V-264V,50/60HzAvialable 250W, 400W,600W,1000WWithout noisy fans.Exremely efficiency 99% power ...