Phantom Commercial DE Open Lighting System With USB Interface: 120V-208V-220V-240VThe Phantom DE open lighting system has been designed for commercial purposes as it delivers optimum PAR value over a broad planting area. The ballast can be used separately from the reflector, and you can hang it separately outside the grow room, which will eventually help you reduce the heat load. The fixture comes with a USB interface and lets you connect the fixture to the autopilot PX1 digital lighting controller so you can dim, switch and boost