MasterColor - Pulse Start - Metal Halide - Unprotected Arc Tube - 4000K - Medium Base - ANSI M148/M110/E - Universal Burn - MHC50/U/M/4K ALTO
Philips MasterColor Ceramic Metal Halide Lamps offer a range of high-efficiency long life with stable color over lifetime and a crisp, sparkling light to be used in open fixtures. Please note that metal halide lamps cannot be operated without a ballast.
Rated 5 out of 5 by Bill42 These bulbs are cost savers
These bulbs are rated high, as compared to some on the market. They arrived packed safely, and we are evaluating the financial benefits of the green nature of them.
July 1, 2011