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07 April 2012 @ 11:24 pm
Compact Fluorescent bulbs  
In my experience, compact fluorescent bulbs generally have a five to ten year guarantee and generally do not last nearly that long. I always save the package (or at least the guarantee and anything it calls for, typically the UPC) and the receipt, and write the installation date on the base of the bulb when I install it. Whenever one burns out, I check the date against the guarantee; if it's less than the guaranteed lifetime I put the receipt and UPC in an envelope and send them to the manufacturer, who usually sends me one or more coupons for free light bulbs. They cost as much as twelve bucks a package, so it's worth the effort for me.
biomekanicbiomekanic on April 8th, 2012 06:41 am (UTC)
I'm looking forward to the day when LED units are cheap; they have an insane lifespan, and are fairly pollution free. After about 20,000 to 25,000 thousand hours of use, they output 70% of their original light. They don't completely burn out till around 100K or so hours.
threeoutsidethreeoutside on April 8th, 2012 02:26 pm (UTC)
I've noticed the same thing but I've never been as diligent as you in getting my money back, or replacement coupons. Maybe I shall - but I just bought a new box of them, and the receipt is long gone. Oh well - good for you for doing that. Maybe if enough of us get on the program, they'll work harder to make the bulbs last longer!
kathrynmicekathrynmice on April 8th, 2012 03:07 pm (UTC)
hmmm . . .
. . . I think you should look to your karma. I just had to replace the first compact flourescent I ever bought. Remember when I was in Interior Design at the Art Insitute in 1994? Yeah, I bought a set for my living room lamps in mom and dad's house.

About a month ago, I came home and found the light I always leave on in the living room when I am getting home after dark, off. I turned it on and it went off. Actually burned out. The first of the compact flourescents that has ever burned out on me. the other two from the same time are still going strong. I use them all over the house. I don't have a standard lightbulb aside from the night light in the bathroom and the fridge and oven lights left.

that set of bulbs have been in two different lamps in two different houses. So if you don't get the life you expect from them, maybe its a quality issue (you get what you pay for after all) or you should look to your karma.

Steve Hutchisonfoomf on April 9th, 2012 10:29 pm (UTC)
Re: hmmm . . .
Is it karma or is it something to do with the quality of the electrical system? I've wondered for some time about the household current behaving badly as a cause of premature death for some electronics - identical lamps, one plugged into my wall, the other into my UPS, and the wall-plugged lamps go through bulbs perceptibly faster.
kathrynmicekathrynmice on April 9th, 2012 10:51 pm (UTC)
Re: hmmm . . .
if the bulb has a filament, yes. a very small fluctuation, exactly the sort of thing that makes surge protectors needed for delicate electronics, can blow out the filament in a regular style light bulb.

other thing is physical vibration - herd of elephants square dancing, very large aircraft changing gears above you, concert amps, can vibrate the filaments apart in very short order.

compact fluorescents should be immune to all that except power surges. what I am seeing from other comments is the cheap ones are cheap and not worth the money. get the expensive, well made ones its cheaper in the long run

billeylerbilleyler on April 8th, 2012 03:36 pm (UTC)
I'm more or less confused by it all. About 70% of the lights in our house are now CFL, but they seem to burn out (or whatever it is they do) nearly as often as incandescents (which didn't burn out very often). I wonder if it's the electrical current, bad manufacturing, or some other factor that equalizes CFLs with performance of IC bulbs.

As LEDs come more into the mainstream for general house lighting, I figure we'll be exploring those more. We have a number of specialty things using LED right now, so this just adds to the confusion. We have bins of various types of lighting in the store room, lots of different styles and wattages. What a rat's nest!
Miche: electric lovemicheinnz on April 13th, 2012 06:55 am (UTC)
CFLs do best in locations where they're not constantly being switched on and off. So they're good for living rooms and the like, but not so great for bathrooms.
Allan: Homeallanh on April 8th, 2012 05:27 pm (UTC)
Against Randy's better judgment, because of the initial cost, I put in two LED indoor floods in key stairwells. The CFLs take a long time to "bright up", and I wanted something instant-on for safety.

Randy's only response when I asked him, "How are the new LED lights?" was "Acceptable."

Two weeks later, I found an empty LED bulb package on the kitchen counter. Evidently he finds them more than acceptable.
They Didn't Ask Medr_phil_physics on April 8th, 2012 08:02 pm (UTC)
Remember to dispose of CFL bulbs properly. They should not be part of the regular waste stream.

Dr. Phil