Phantom Commercial DE Open Lighting System With USB Interface: 277VThe Phantom Commercial DE lighting fixture supports top of the line technology, which delivers a high PAR value over a broad footprint. You can use the reflector with the ballast or keep both separated to use them separately. The fixture is USB compatible which enables connection with Autopilot PX1 controller and lets you dim, switch and set the light on boost mode. Cooling Fins: The grow light has a smart heat management system that includes cooling