... at 100%, 75% or 50% power 1) Input Voltage Range: 120V, 208V, 240V 2) Input frequency: 50/60Hz 3) Power factor: >0.99 4) Efficiency ... function B) Trouble-detecting protection function 3) Dimming, adjustable output power 4) Light weight, small size, non-flickering, noiseless 5) Fast ... & MH lamps. 7) Available in 220-240V and 110-120V, 600W/1000W 8) Come with a 8ft power cord 9) Year factory warranty ...