175 Watt Metal Halide - USA - Hg - Unprotected Arc Tube - 4000K - Medium Base - Universal Burn
The Philips MH175/U/M 175W metal halide bulbs are known for high efficacy, long life and quality. It emits 15,400 lumens and has a outstanding white 4000K color. They are engineered for outdoor security fixtures, grow lights and general lighting purposes. All the Philips 31358-5 have a E25 medium base and require an ANSI M57 lighting ballast to operate.