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Submission + - Philips releases 100W-equivalent LED bulb, runs on just 23 watts (extremetech.com) 1

MrSeb writes: "The Light Fair convention kicks off in Las Vegas this week so there will be any number of related announcements coming soon. Lighting giant Philips is starting things off early with the announcement of their 100W-equivalent LED bulb, the AmbientLED 23W. The model produces 1700 lumens, putting it at a very respectable 73.9 lm/W. The unveiling comes shortly after Philips’ L Prize bulb was made available to consumers. That bulb currently sells for about $60 and is a more efficient light source, capable of 94 lm/W. The two use similar designs, for example both take advantage of remote phosphor, but the AmbientLED 23W (it will be called the EnduraLED in non-consumer applications) is brighter and lacking in some of the performance characteristics of the L Prize winner, including luminous efficiency and color accuracy. Philips’ 100W-equivalent bulb will be available some time in the fourth quarter. Pricing has yet to be announced, but it will likely be well over $30."
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Philips releases 100W-equivalent LED bulb, runs on just 23 watts

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  • 23 W CFLs put out exactly the same amount of light, and cost $1. Not progress until the LED costs maybe $2-5-- assuming that LEDs actually meet their claims of longevity, unlike CFLs.

In any formula, constants (especially those obtained from handbooks) are to be treated as variables.

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