Swirlie Life Overrated
I'm a fan of Compact Fluorescent Light bulbs. I like how they run cool, use less energy to provide the same amount of light (to my eyesight, anyway), and I plan to install them throughout the new house when it's completed (which, by the way, isn't an expense that we considered when we kicked off the construction. Whoever thinks about having to buy 75 light bulbs at one time*?). I don't even mind the brief warm-up time required for the bulbs to reach full luminosity.
What I'm not impressed with is the actual life of the bulbs vs. the rated life. When we first started switching out the incandescent bulbs in our house, I thought I observed a shorter life for the CFLs than I felt was realistic, but I didn't have any way to prove it. After all, nobody makes a note of when they change a light bulb. Right? Well, do they?
Ahem. I do. I started using a Sharpie to mark the base of each replacement bulb with the month and year of installation. It took a while, but I finally changed out the first CFL so marked. It was installed in December of 2006.
Now, assuming that the lights in my home office are on 18 hours a day (which is actually not too far off the mark, considering that said office doubles as a workout room and my wife is on the treadmill at 5:00 am most mornings), and further assuming that this occurred every day of the past 12 months (which it didn't, but we're being conservative), that works out to -- um...carry the one...divide the hypotenuse -- 6,570 hours of life before the poor thing experienced an apparent fatal attack of fluorescent epilepsy.
I confess that I didn't note the rated hours on the package for these particular bulbs (anyone else in favor of regulations requiring the manufacturer to stamp that on the base along with the wattage?) but if you visit the 13w CFL page of my favorite light bulb vendor (which happens to be located in Grand Prairie, Texas), you'll see ratings that range between 10,000 and 12,000 hours. My pitifully underachieving bulb fell 36% short of the low end of that range.
Granted, almost 7,000 hours of life from a light bulb is nothing to sneeze at, and the economic advantage vs. incandescents is still significant. I simply wish we had more accurate labeling. It can be done; after all, who questions the EPA's gas mileage ratings for new cars?
OK, never mind.
*Lest you think I'm just being stingy, consider that we'll have about 50 recessed light fixtures, each of which will take one 4.75" reflector flood bulb. The cheapest of those bulbs is more than $8 each. The remaining 25 bulbs will be less expensive, being the standard-size kind used in closets, ceiling fans, etc.
Deborah, you really ought to check out the CFL options. They come in a wide range of color temps, with some that exactly mimic incandescent lighting, if that's what you like. You can also get them a bit whiter, but still not as blue-white as traditional fluorescents. (I always flash back to Tom Hanks in "Joe vs the Volcano" and the way the light tubes physically beat him down.)
As far as being a "dater," I'm discovering it's often much easier to mark the item itself for later reference than to dig out the paperwork (although that doesn't stop me from being a "filer," as well).
Posted by: Eric at November 15, 2007 09:24 PMI'm waiting on the swirlies to get down below "dirty bomb" levels of mercury. The instructions for cleanup and disposal are hysterical.
The other problem we have at Random Manor is the Random Daughter. She has a rather esoteric superpower: she can detect an empty room with a light on from distances of hundreds of feet. Sensing such a room, she swoops into action from wherever she happens to be and turns off the offending circuit, giving (usually) me a baleful glare when I return to the scene moments later.
With CF bulbs, this apparently lowers their lifespan considerably, in extreme cases (and she is that) approaching "normal" incandescent bulbs.
But don't worry -- I'm buying carbon offsets.
Posted by: Bret at November 15, 2007 09:58 PMMy swirlie light lasted about as long as...I don't know.
My short and absent-minded memory makes me prime material for marketing swindlers and false product loyalty. I can't remember when I put the thing in, so I can't tell you how it compares.
"I'd go buy another one."
I probably would, too.
It's swirlie.
Posted by: Julie at November 16, 2007 12:29 AMI believe they're making "daylight" swirlie bulbs now. But I could be wrong as I haven't done a ton of research since Tim swears up, down, back, forth, and cylindrically that the only florescent bulb that will ever be in our house will be in the kitchen (with a possible exception to the workshop, should he ever, you know, hang the lights in there). It comes of his dad being an early adopter - long before they were compact enough to fit in a regular socket and not hang out, looking odd. Imagine, if you will, a rather nice (if ordinary) dining room chandelier with tall, swirled florescent bulbs in it, making it impossible to put the globes back on. Yeah, he grew up with that. It seems to have left inordinately large scars. :)
Posted by: beth at November 16, 2007 06:19 AMWith CF bulbs, this apparently lowers their lifespan considerably
I hadn't heard that. I guess it has to do with the life of the ballast...? The implication is that on a TCO basis, it may be more cost-effective to leave your lights on continually. The sleep-mask manufacturers are probably behind that research.
Julie, if Seinfeld was still on TV (with new episodes, that is), I'm sure that "swirlies" would make recurring appearances, somehow.
I'm starting a "Sharpies for Julie" campaign, by the way, so that you, too, can date your light bulbs.
Beth, I foresee a new category of interviews on daytime talks shows: "I was traumatized by ill-advised fluorescent lighting." Oprah will have a field day.
Posted by: Eric at November 16, 2007 07:28 AMBecause you will need to buy and install so many new light bulbs at one time, this could be a splendid opportunity to buy a variety of brands and deploy them---where practical---side by side.
Those of us who are obsessive/compulsive would appreciate knowing which of the swirlies live up to the hype.
Posted by: Deborah at November 16, 2007 11:00 PMYeah, I think my wife would really be all over the idea of turning our home into a consumer reports laboratory for light bulbs! ;-)
Posted by: Eric at November 17, 2007 09:39 AMPerhaps with CFLs there's something to be said for not going cheap, but I'm pretty disappointed with the performance of the CFLs I have installed currently. They do take a considerable amount of time to "warm up" and a couple of them have a very noticable flicker.
The lights we run most often are non-incandescent bulbs, but there are some applications where I can't convince myself to switch away from my beloved Reveal bulbs. Dede & I are both very diligent about turning unused lights off tho...
Posted by: Rob O. at November 18, 2007 05:58 AMWe have a few swirlies around here. There's one in the living room lamp and it has been in service for at least five years. It even survived the move from Cleveland!
I'm not sure where the others are, but they're around somewhere.
Posted by: Jim at November 18, 2007 03:19 PMand a couple of them have a very noticable flicker.
Shouldn't be any flicker whatsoever. That sounds like a defect.
I also am borderline psychotic about turning lights off.
It even survived the move from Cleveland!
At first, I overlooked the reference to the lamp and though, "man, this guy's even more OCD than me; he moves his light bulbs!" But I guess everyone packs their lamps' bulbs when they move them, so you're off the hook for that neurosis, anyway.
Posted by: Eric at November 18, 2007 03:43 PMI'm sure that bulb got packed because it cost like a gozillion dollars. The incandescent bulbs did not come with us when we moved.
Posted by: Jim at November 18, 2007 06:35 PMSeveral good comments on the "swirlies". I heard an electrician on one of the radio talk shows and he encouraged everyone to bypass the Big Box Stores and go directly to an electrical supplier for their bulbs. All bulbs available at the regular retail outlets are 120v. The electrical supply places offer 130v and they last a heck of a lot longer.
Posted by: Johnny at November 19, 2007 07:14 PMThe electrical supply places offer 130v and they last a heck of a lot longer.
Interesting. I had never heard that. I guess the implication is that the higher voltage rating makes the bulbs less susceptible to damage from spikes in the current? And I presume that might also shield them somewhat from the problem Bret mentioned above about frequent on/off switching reducing the lifespan.
Posted by: Eric at November 20, 2007 09:02 AM
We haven't bought any compact fluorescent light bulbs for our house yet, and to tell you the truth, I've been dreading CFLs in my own home due to simple vanity: My hair and complexion look terrible under fluorescent lighting.
But what I really wanted to cheer you on about was dating your light bulbs with a Sharpie. I am a "dater" myself ... and I write who, where, when, how much I paid on everything large and permanent enough to withstand the notation.
Posted by: Deborah at November 15, 2007 09:09 PM