
Sunlight Supply's Sun System VI Switchable ballast allows the use of either a metal halide (400 Watts) or a high pressure sodium (400 Watts) lamp. To change lamps, insert the appropriate lamp and set the switch to the correct setting. This enables growers to utilize the proper spectrums for vegetable growth (metal halide) as well as flowering (high pressure sodium) with a simple to switch. This switchable grow light system includes 400 Watt HPS Bulb, 400W Metal Halide Bulb, Switchable Ballast, Super Sun 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.
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