[citation][nom]nebun[/nom]damn, i guess everyone is jumping on the "be green" bandwagon...[/citation]
Getting stuff like this finally done really should have nothing to do with being green. It's to do with how long they last and how much less it costs to use.
After all, with the old incandescents technically the light they give off is a byproduct. They really just produce heat.
There's alot of other stuff that should be done for practical reasons only. Things like hybrid cars though are pointless if you did want to be "green" since the manufacturing process for the batteries isn't green at all to begin with.
The unfortunate thing is that LED's, at this time, aren't much more efficient than fluorescent bulbs.
Sodium lamps (both high pressure and more so low pressure) are even more efficient.
LED's just last a lot longer.
ah heck, at first glance I thought it was talking about a 450 lumen flashlight for $25 and I got excited. But seriously, $25 for a lightbulb? Give me 25 CFLs! 13 watts and 825 lumens and much better lighting.
That isn't any better than a modern spiral fluroscent bulb. I am holding in my hand a MaxLite bulb; 18 watts for 1150 Lumens.
This LED bulb thing is 450 Lumens for 7 watts. 64.28 Lumens/watt.
LED technology isn't there yet! The only advantage is no mercury.
[citation][nom]AlexTheBlue[/nom]I'll hold out for semi-affordable 60 watt equivalent LED bulbs, thanks. These ones are too dim and too costly for most of my fixtures.[/citation]
Agreed. However, I think this would work very well for a small desk lamp,etc.
[citation][nom]danwat1234[/nom]...64.28 Lumens/watt.LED technology isn't there yet![/citation]
Cree's own XP-G emiters already put out 132 lumens/watt. What needs to happen is price to come down on LED products. A triple XP-G star sells for around $22 each, and needs a driver that can cost almost as much. Once prices go down, and color gets better fidelity, then LEDs will take off. That triple XP-G star can put out 1000 lumens at 9.9W, and there are other LED products like Luminus Devices' SST-90 that puts out over 2000 lumens from a single emiter... oh yeah, heat is another issue, a BIG issue to be addressed.
These are no better than the early days of CFLs. I got 3 LED lights from Sams club awhile ago in the 20-30$ range. 2 are no longer working after what I would guess is less than a few hundred hours of running and the 3rd only half the LEDs lights up. Ill buy them again but not until a major company like GE has tested them. CFLs are good enough for the time being.