I do actually have a carbon filament light bulb that I turn on every now and again for mood lighting. It burns 60 W according to the label and emits a few photons every now and then, if it feels like it.
For actual lighting, I'm a big fan of LEDs. I do have a couple of CFLs around, but don't care for the light they put out or for the warm-up time. Once they burn out, they'll be replaced with LEDs.
With a decent quality LED bulb, the quality of the light is as good as any incandescent bulb and thanks to the lower energy use, they pay for themselves within a year.
I also have a vintage carbon filament bulb, it makes a lot of heat and not very much light. I guess things are relative; compared to a candle or small gas mantle I guess it made a fair amount of light. lol
I have about 40 Cree LED bulbs installed in my house over the last year or two. Zero failures. Made in North Carolina. Fork Chinese stuff, wondering when and how it will fail.
My CFL experience is as for others. They don't last. And if you are a good person, you have the hassle of proper recycling.
Waiting for Cree to release candelabra bulbs, then my conversion to LED will be complete.
Ain't no good for keeping birds warm, though. 100 Watt equivalent LEDs are only warm to the touch.
I've made a bunch of LED fixtures for my house too! I generally use BridgeLux emitters, build a CCS for them, and then the complex part is designing the fixture.. These are big flat emitter chips, and don't exactly replace a light bulb.
Plus, LED's finally have up near 100CRI, so they look good! I feel bad for those who get the cheap blue-white fixtures.. But the new batch of emitters, which will certainly make it in to commercial fixtures soon enough, really look great.. Can't tell it's not incandescent.
Pics are my most recent lights, from the fall.. They were built to over-winter plants, but the light fixtures will find a permanent place somewhere in my home.
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