Philips Submits First L Prize Entry: LED replacement light for 60W incandescent
Philips Electronics has become the first company to submit an entry for the L Prize competition, which is sponsored by the Department of Energy and seeks an LED replacement for the common 80W incandescent light bulb. In addition to bragging rights, the winner will get a significant chunk of the $10M prize fund.
Required metrics for the 60-Watt incandescent LED replacement, as laid out by DOE, include:
- Efficacy of more than 90 lumens per watt, which exceeds the efficiency of all incandescent and most compact fluorescent sources today, which range from 10 to 60 lumens per watt
- Energy consumption of less than 10 watts as compared to a 60 Watt incandescent.
- Output of more than 900 lumens, equivalent to a 60 Watt incandescent light bulb
- Lifetime of more than 25,000 hours, which is 25X greater than a typical incandescent bulb
- Color Rendering Index (CRI) greater than 90, which is a high measure of lighting quality
- Color Temperature between 2700 – 3000 Kelvin, which is "warm" white light comparable to that of incandescent sources
Note that nowhere does it say that the LED light has to cost the same as an incandescent version. LED incandescent replacements currently cost about $40-50.
Here’s a good commentary from SSL Design Industry News:
“While the DOE may be encouraging small manufacturer participation, challenges will remain for those smaller companies due to the substantial technological and resource effort that will be required. Submissions will include at least 2000 test units, and while the ultimate pricing for the L-Prize winner is hoped to be in a range that provides a reasonable payback to consumers, current cost models suggest that just those test units would represent a $250K to $500K investment on the part of the submittor. In addition, winners will need to provide evidence that "they are fully prepared to being production at a capacity that exceeds 250,000 units per year for the first year of production." “
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