These are packaged bulk for commercial applications and sold in increments of 70 (1/2 pallet). If you equip a larger operation, working on the North American 3 phase systems, you now have the choice of remotely controlling your lights with our Gavita Master controllers. We designed new, multi-voltage electronics to either work with the US 480 V or the Canadian 600 V WYE 3 phase installations, enabling much lower installation costs, more efficient electricity use and ease of installation. Running on a higher voltage (277V or 347 V phase-neutral) these fixtures use less power and are more compact than traditional consumer 120-240V fixtures. The compact fixture contains a lamp, HR96 reflector or W 150 DE for wide configurations and horticultural quality ballast in one comprehensive package. The HR96 DE for overlapping configurations, assuring optimal uniformity and penetration. The W 150 DE for wide configurations, where uniformity and lower light levels are required in large rooms. The fixture?s light source is a Gavita Pro Plus 750 watt double ended HPS lamp, generating 1450 æmol s-1 of light. With a light maintenance of over 96% per 5000 hours you only need to replace it once a year. 1 year warranty on the lamp. This professional fixture requires installation by a certified electrician in an industrial environment. Customer must select cord and mounting options.