Let there be light
Thanks to a one-two punch from MSN Money and Madame X at My Open Wallet, things have been hopping around here for the past couple of days. Welcome to all the new visitors, commenters, and subscribers; whether or not you agree with what I have to say, I'm glad to see the diversity of opinions and ideas out there.
One of the few complaints I have about my apartment is that the natural light in here isn't great. There are advantages to facing a brick wall: it's very, very quiet unless someone is actually working in the courtyard, and although I'm not really a rampant nudist or anything like that, it's nice not to have the neighbors gazing in on my private foibles. The interior lighting system is pretty good, too: in the living room and kitchen area, I have one overhead light in the hall, two globe lights near the front door, and nine recessed lights in the ceiling.
The problem with all of those recessed lights is that they burn out. This is especially true of the two grow lights I have for plants: they seem to last no more than six months, and the others last for about a year. In the six and a half years I've lived here, I'd estimate that I've changed recessed light bulbs about sixty times in total.
For a short person with high ceilings, that's way too much time spent on the top step of a ladder. Over time, the environmental consequences are also shaping up to be significant. Neither of those two things sits all that well with me, so for the past year I've been on the lookout for 50 watt equivalent, par 20 compact fluorescent bulbs in the local hardware stores. So far, I've come up empty handed. I consulted my good friend Google about this a few times, and what I've found is surprisingly limited: unless I'm missing something, there just aren't very many options out there for recessed CFC light bulbs.
While trolling through the hardware store a few weeks ago, just as I was about to give up the search yet again and buy a new supply of regular incandescent bulbs, I came across a small cache of par 20 LED lights for $17.99 a pop. I didn't really know what LED lights were, but two things grabbed my attention right away: with a cluster of 32 tubes in each bulb, the total burn rate per bulb is only 1.8 watts of energy. In addition, these particular lights are rated to last 20,000 hours (roughly ten years) each. These particular LED bulbs didn't carry a wattage equivalent on the package, so I didn't have a clear sense of exactly what kind of horsepower $17.99 per bulb delivers. Still, the idea seemed promising, so I decided to pilot test a couple.
The first opportunity to try one of the new bulbs out came up last week when I blew a light in the kitchen. When I got the bulb in place and slid down the ladder to look at the results, the first thing I noticed was that the light was white instead of yellow. I checked this out on the Google and learned that although LED light color varies across the light spectrum, the white light used in LED bulbs is significantly closer to natural daylight than yellow light generated by incandescents. I haven't found any hard facts detailing the difference, but anecdotally it looks as though some people find that the different color helps compensate for lower wattage equivalent output. While reading up on LED lighting, I also learned that the technology for home LED lighting use is still fairly limited: the brightest spotlight and floodlight bulbs produce about a 50 watt equivalent for 8 watts of power and last up to fifty years, but bulbs like this easily cost over $50.00 each.
At 1.8 watts of power usage and $17.99 per bulb for the ones I bought, I'm pretty sure I'm not getting anything close to a 50 watt equivalent. Possibly because the light is both white light and concentrated (a spotlight rather than a floodlight), though, I'm not seeing an enormous difference in overall brightness. I haven't had the bulb in long enough to see if there's really going to be an impact on my electricity bill, but at 0.036% of the energy required by a standard 50 watt incandescent, even changing a single bulb should knock a few dollars off.
I'm installing the second bulb in the living room tonight to replace another blown incandescent. If the two LED lights together produce halfway decent lighting and a noticeable dent in my electricity bill, I'm leaning towards plonking down $125 up to $250 (Ed. note - obviously can't count) for five high output, ultra long life bulbs to finish replacing everything but the grow lights. Over time, that'll mean a lot less ladder climbing. In addition, unless there's some large elephant in the room that I'm just not seeing, the environmental impact of my home lighting will greatly diminish and the long term savings should more than cover the initial out of pocket cost. Everybody wins!
How about you folks: has anyone out there made the switch to LED lighting at home? Anyone contemplating it? What other changes are you making in your life to bring cost and environmental impact into balance?

