Hydrofarm HX51830 HPS to Metal Halide Hortilux Conversion Bulb , 400-Watt description
This HORTILUX metal ace conversion lamps are metal halide lamps that operate on high pressure sodium systems. A one-dimensional lighting system is easily and economically converted into a complete growing system providing the full range of spectral energy required for all stages of plant growth and development. These lamps are 100 percent lead free.
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