Thursday, February 17, 2011

Tripping the light fantastic

We take an interest in lighting in and around our household. Though we have no skylights, we like to work near windows if the weather keeps us indoors. There are a few lights to help visitors navigate to the house, and there are light switches in the barn and potting shed, thanks to my dad who wired them at the age of eighty-one (he's now ninety-three). We've painted all the interiors white, which helps with our rather paltry number of light sockets. We're not averse to occasionally trotting around, inside or out, with a lantern, like folks from two centuries ago. In power outages, our wall-hung kerosene lamps and candles, and our family heirloom table lamps, always at the ready, spring into action.

But we do without quite a lot of illumination, too; rooms we're not in stay dark. What can be simpler?

The house was built in 1949, Risa's birth year as it happens. Upon our arrival, we found 75-watt and 100-watt bulbs everywhere. The dining room has a particularly low ceiling, and one of our sons was already particularly tall, so we sprung for two 22-watt Circleline fluorescent bulbs, which at the time were twenty dollars each. They kept out of the way nicely. Eighteen years later they are still in service. Occasionally we unscrew one till it goes out, and just keep the other one going, as needed. So we're often at 22 watts in a space that once required 150 watts to illuminate. We were so pleased with CFL that as our consciousness was raised and the price lowered, we eventually replaced every incandescent in the place. Our monthly billed usage, from this and other measures, has dropped from an average of over 6KW to just over 3KW.

Do we still have incandescents? Yes, on a high shelf, and we drag them out to use as heat lamps for chicks and ducklings and to keep the pump company on big freeze nights. They make great heat lamps, but you have to check on them from time to time; they burn out unexpectedly.

Our next lighting project has been to replace incandescent flashlight bulbs with single-element LEDs. This comes to nine dollars a pop so far, but not a single flashlight in our possession has yet needed its batteries changed! One of them, a two-D-cell model, was going very dim when we made the change, after only two weeks' intermittent usage; it's been in use for over a year since. We think these bulbs will prove to have been a decent investment.

Recently we spotted something new at our local hardware store -- standard size LED light bulbs. They are weakish yet -- can't be used in the place of any of the 13- or 22-watt CFLs that abound -- and are billed as "accent lights," so the ten dollars they're going for seems steepish. But Risa nabbed a few, also a tiny outdoor spotlight of the same type, same price. After all, the brighter ones she's been looking at online are still running around forty bucks a pop.

Our entryway is awkward to approach in the night, so when either of us is coming in late, the other leaves on the porch light switch, which is connected to the entryway light, pictured above, as well as the porch light. These can thus be on for quite some time even though not otherwise needed. By swapping out the 26 watts' worth of CFLs that had been in those places, we're now down to -- ta daaa! 5.2 (yes, five-point-two) watts for that homecoming vigil.

And the driveway floodlight works great. One can easily see to fetch wood or fit keys in a car lock (we still have that kind, we're Neanderthals). We don't work on car engines at night anyway. So that's 2.7 watts for the time it's on. Risa went back to get it a companion (2-bulb motion sensor) but the store had been cleaned out of these bulbs within hours of their introduction. Smart customers!

I know that LEDs are currently being said to have little overall advantage over CFLs, but by selectively choosing low-powered LEDs for the right locations, you can really cut down on that light bill.

7 comments:

  1. OK. My conscious is being raised too ;) I'd replaced most of our incandescents with CFLs, all except the one in the utility room, which has only quick on and off usage. Now I'm going to have to check out the LEDs.

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  2. Our utility room is unheated, and so the CFL there is a bit slow in winter, but we've learned to execute a gracious pause, like a royal about to make an entrance, before making that first step down. But where we are, an unheated room only gets down into the forties as a rule. Mnay people around here, and we're among 'em, are using CFL for exterior applications. :)

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  3. Anonymous12:41 PM

    We have found we don't like CFLs at all, though we've tried them several times, and still have some. They don't seem to last all that much longer than the incandescent bulbs, and they have awful colors.
    But we have LEDs scattered here and there, and like them. Great for things such as bathroom lights, for when you don't necessarily want too much light ... though I'm very fond of the dimmer, too.
    Does seem like a miracle, to be able to drop from 75 watts to about 5. Eventually my husband -- a huge LED fan -- wants to replace all the lights in the house with LEDs, but am not sure how far that's progressed, since I've lost track of which lights have what bulbs. I do know I'm not spending time replacing light bulbs these days; a very nice change.
    NM

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  4. I, too, think the LEDs will be a good investment. Hoping the local store starts carrying them in various sizes/styles soon.

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  5. Anonymous4:58 PM

    Electric light! Color, lumens, peak power=Kw, use power=KWh,. From day one fluorescents bulbs depreciate light out put but use the same amount of power. They come in many colors that yield different moods. Incandescent has the best color but uses more power for the same amount of lumens. LED uses less power per lumen but also comes in many colors and still not as good as incandescent. Watts also equal heat which helps in winter and hurts in summer. One KWh equals 3414 BTU no matter what kind of light source you use.

    Lisa

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  6. Anonymous8:54 AM

    We invested in CFL's as we could afford them when they first came out nearly ten years ago; we finally replaced the two in the living room lamps this past fall. I also invested in the dimmer-able CFL's for our dining room chandelier - they take a little while to brighten up but otherwise are quite nice. And we FINALLY found some CFL's that will fit in our kitchen fixtures (specialty bulbs) and replaced all 12 of them this past week. That was a little pricey but going from 300 watts of power draw to 60 should really help our power bill, not to mention that it is actually about three times brighter in here than with the incandescents. Which is one of the miracles of CFL's...the lighting can be of a much higher wattage bulb with less actual power drain.

    I still want to invest in solar LED lanterns. Bright enough to knit or spin by at night, no extra heat in summer, and renewable as long as I remember to put them in the window during the day.

    Do you use incandescents for seed starting, or mats? That's my present predicament, our house is presently 61 and dropping, due to the storm. Too cold for seeds in here.

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  7. We're skipping the cold-intolerant seeds this year but we have a friend who does starts as a business, and we often get her orphans.

    I have had some trouble with seedlings of late after many years of success and am thinking of digging a hot bed ("cold" frame running on chicken manure) next year.

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Stony Run Farm: Life on One Acre