Electronic ballast available 250W, 400W, 600W, 1000W 1.120~240V / 50~60Hz 2 ... ballast available 250W, 400W, 600W, 1000W Input: 120~240V / 50~60Hz, 2M power cord with plugOutput: 10CM cord ... with socketHigh Power Factor of 99.9% Built- ... in fan, disperse heat.Dimming, adjustable output power: 50%, 75%, 100%Higher lumen output and more ...