600W Sodium Bulb Sylvania 600W Sodium Bulb (BUSD600SLI)This 600W sodium bulb from SLI lighting has proven to be an excellent choice for any 600w electronic ballast.
Provides high efficiency and high lumen output
Made in Belgium
Manufacturer's Product Information
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Sylvania MetalArc Metal Halide (MH) Lamp, 175W Sylvania MetalArc metal halide lamps allow for design flexibility with multiple light source solutions to choose from. MetalArc lamps have significantly higher efficacy than mercury vapor or incandescent products. 4200K color temperature.... — Ships from HF: OR, CA, CO, MI, PA USA....more info.