Philips MasterColor®
Ceramic Metal Halide
Pulse Start ED231⁄2
Lamps featuring ALTO®
LampTechnology
Ideal for downtown areas,
colleges and universities
where visibility and quality
of light are important
CERAMIC METAL HALIDE
† This lamp is better for the environment because of
its reduced mercury content.All Philips ALTO®
lamps give you end-of-life options which can simplify
and reduce your lamp disposal costs depending on
your state and local regulations.
Upgrade to better white light
Philips MasterColor® Ceramic Metal Halide Pulse Start ED231⁄2 lamps
are a better value than quartz metal halide, with longer life, higher lumen
maintenance, and energy efficiency.
Better quality white light is now available in a familiar
1
ED 23 ⁄
2
bulb shape with a mogul base
• Easy upgrade to better white light just by changing your bulb*
• Choice of color temperature—3000K or 4000K
Better rated average life1 of 24,000 hours**
• vs. quartz metal halide pulse start 175W (MS175/U/PS) lamp with a
15,000 hour rated average life1
Better lumen maintenance than quartz metal halide
• Improved lumen maintenance increases time between re-lamping
Better energy efficiency
• vs. mercury vapor and quartz metal halide with up to 90 lumens per watt
Better value than quartz metal halide
• Less mercury content than quartz metal halide, better for the environment
1) See back of page for footnote
* Requires a metal halide pulse start ballast
** 100W 3000K lamp has a rated average life of 17,000 hours
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