Philips has expanded its range of single-ended MSRs with a few noteworthy forward steps. First to be announced were improvements to the existing CST 250HR lamp with a gain in output and longer lamp life at 4,000 hours. Second was the introduction of a new 250W MSR to complement the 250W CST but at a daylight color temperature of 6,000°K. Philips calls the two lamps the “Philips 2-pack for CST fixtures, a multifunctional solution for Ceramic ST fixtures,” which is a pretty accurate statement. ...

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