VU1 has announced a new light bulb technology, and just received patent approval for it. The new bulb is not incandescent, LED, or compact fluorescent. It is a new form of bulb called ESL, Electron Stimulated Luminescence.
These bulbs produce 40 lumens per watt, compared to 7-24 for incandescent, 12-36 for halogen, 44-80 for CFL, and 30-60 for LED. Although CFL and LED are more efficient, LED light bulbs are still ridiculously expensive and not exactly easy to find suppliers of non-sucky bulbs, and CFLs can't really be dimmed and have mercury. This new ESL bulb however is at the low end of CFL efficiency, yet:
I gotta say, if this all is true, sign me up. I want dimmable bulbs that don't eat watts. They are expected to be released first quarter of 2009, and will cost about $14 per bulb. I am sure that price will come down rapidly once people catch on.
The one thing that annoyed me reading through the marketing hype was the "brand new technology" claims. It's only new in a bulb, but not in general, since after all it is basically the same principle as a CRT TV/monitor. Electrons excite phosphors, which then emit light, if I understood correctly. That's a tv tube.
They do seem to understand the market need however, since they will initially be targeting the bulb sizes that are typically used in recessed lighting, such as kitchens and living rooms, which are places you want to dim the lights, and have avoided putting in CFLs probably.
I would be really curious to test these out and will be keeping an eye on them.
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