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> 175 watt metal halide light bulb lamp ED17 M57 medium
175 watt metal halide light bulb lamp ED17 M57 medium
175 Watt Metal Halide Light Bulb
M57 Medium Base ED17 Metal Halide Lamp
This light bulb is rated for ENCLOSED fixtures
If the bulb will be totally enclosed within a UL listed fixture, then this enclosed rated bulb is acceptable. If the bulb will be exposed during usage, an open rated light bulb must be used.