Find a wide variety of Switchable Ballast plant grow light systems from Sunlight Supply. These plant lights have a ballast that allows using either a metal halide or a HPS lamp. To change lamps insert the appropriate lamp and set the switch. This enables growers to utilize the proper spectrums for vegetable growth (MH) and flowering (HPS) with a simple to use switch.
These switchable grow lights include everything you needs includes HPS Bulb, Metal Halide Bulb, Sun System VI Switchable Ballast, Reflector, lamp cord, socket assembly and power cord. Add Accessories to this plant grow light system such as: integrated intermatic timer, protective glass, or hose adapters. Upgrade your bulb to an enhanced performance HPS bulb for an additional cost.
Find Switchable Ballast Plant Grow Lights here.