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Feature
Dimmable and Optional Power Output: 600W, 660W, 1000W, 1150W; 15% more light featuring High Frequency Drive TechnologyCompatible with Philips Master Green Power Plus, Ushio Pro Plus, AUVL HPS and all Double Ended HPS and MH lamps
Backward Compatible with all single-ended HPS and MH lamp bulbs
Zero Acoustic Resonance; Fan-less Silent Operation. UL listed and FCC certified; 3-year warranty
You need to use a RF protection cord when you want to coordinate the ballast with the reflector to block non ionizing electromagnetic radiation in radio frequencies