Tag: LEDs

The Future is Brighter with LED Light Bulbs

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We’ve been gradually, as the prices dropped, been converting our home to LED lightbulbs.

A few years ago, we jumped on the CFL bandwagon. It was one of our earliest stories on this blog, back in 2006. And we went hunting for dimmable CFLS.

We were convinced at the time, that CFLs would continue to improve, as would the dimmable type. However, dimmable CFLs burn out, and don’t quite have the dimming we’d like.

The common complaint about many CFLs is that they do not come up at full brightness, and the color output doesn’t quite match incandescents.

LEDs, however, have none of these shortcomings, although they can be highly directional light. They use less energy, they are typical dimmable, their color performance is more like an incandescent bulb and they last longer. The last longer part is relative, however.

Early models haven’t lived up to their longevity, by most reports. We haven’t had the decade to test them out, but Gadget Wisdom Headquarters is now 90% LED powered. The holdouts had been PAR20 and PAR30 bulbs, which were still $30 a piece. But the local Costco is selling 75 watt equivalent PAR30s for only $15. We got two to test, and will be expanding.

We also have a fixture that uses bulbs with a E12/candelabra base, and it is harder to find 40-60 watt equivalents with this base. They will come, we’re certain. They are hard to find in CFLs as well.

In several rooms, we’ve installed LED strip lighting from Ikea. They offer two models, the more economical Ledberg, and the more flexible Dioder. The Ledberg is one long strip, the Dioder can be installed as four separate strips, and other configurations. It is perfect for display areas, bias lighting, and undercabinet needs.

One of the biggest problems we’ve had was solved recently, trying to understand lumens to traditional watt ratings. The above diagram was shown to us, which has been very useful.

If you are reluctant to spend a lot, you may be able to justified a few strategically placed $10 LED bulbs in certain fixtures, which is the way we started. Either way, it is where we are all going eventually

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LED Bulbs Coming into their Own?

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100-240V 2W (15W equivalent) E27 Osram LED Lig...
Image via Wikipedia

We bought our first LED light bulb a few months ago and put it into our desk lamp. The suspicious yet understandable issue with LED lightbulbs is lumens.

We aren’t used to lumens. We’re used to watts. Even though they aren’t accurate. CFL lightbulbs are labeled with lumens, which indicate light output, but they also note the equivalent in a traditional incandescent bulb because that is what we understand. Those notes are suspiciously missing from the LED packaging we see.

Even CNET’s Green Tech, and its editor, Martin LaMonica agrees with us.  But, he advises that is changing. He tried some samples from Lighting Science Group, which manufactures many of the LED bulbs for Home Depot‘s Ecosmart line. The bulbs are available on the Home Depot website, and should be in stores sometime this month.

But these bulbs which are getting brighter and more capable of what we demand of them are not cheap. Twenty to thirty-five dollars for a single light bulb is a bit much. The savings over time are a consideration, but the price will have to drop before it becomes a mainstream option.

The Department of Energy is set to unveil a program to help shoppers understand these new options. They will have a new label called Lighting Facts. It certainly will help if all bulbs use the same designations. We guess it is time to internalize the lumens system.

In the meantime, we have added some Sylvania ACCENT LED bulbs to a bathroom. Three produce enough to shine in this small room. But we knew that going in that they weren’t incredibly bright. We compared the lumens to the package of CFLs next to them at the store.

The concern is that the information isn’t getting to us. The New York Times reports that the Federal Trade Commission is suing Lights of America for misrepresenting the light output and life expectancy of their LED lightbulbs. For example, the company claimed one of its bulbs could replace a 40-watt incandescent, which typically puts out 400 lumens. They found the bulb in question only produced 74 lumens. In addition, they claimed another bulb would last 30,000 hours, but lost 80% of its light output after only 1,000 hours.

The company responded by stating that the bulbs that are the focus of the suit were introduced before formal standards were established for LED’s. Furthermore, they advise that they already responded by removing the equivalency claims from its packaging…which explains why the useful comparison of equivalency is omitted from LED packaging.

In the end, we’ll continue to experiment with these bulbs. Why? Because they last longer, use less electricity, and like the CFLs of a few years ago, will continue to improve. Why? Because the government and the public demands it.

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LED Lightbulbs That Don’t Stink Coming Soon

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LED lamp with E27 Edison screw.
Image via Wikipedia

We love the idea of LED lightbulbs. Like so many technologies, CFLs just started to get good, and adopted by the mainstream when the latest thing comes. LED lightbulbs last over ten times longer, use less electricity, and…are dim. Very very dim.

We can’t even find equivalency on most LED bulb packages we’ve seen. We’re used to CFLs being categorized as the equivalent of a specific watt incandescent. Those stats are suspiciously missing from LED packaging. They use the more accurate lumens…but how many people have a sense of what a lumen is?

We checked the lumens on a  CFL and compared them to the LED and found it…again. DIM.

The New York Times reports that Osram Sylvania’s  Ultra bulb, available in August, and Philips’s EnduraLED, which will be in stores in the fourth quarter, will use just 12 watts of power to equal the light output of a 60-watt bulb. The 60-watt bulb is the standard of light bulbs.

The prices for these bulbs will be $30-$60…and hopefully in 2 or 3 years, down to $20, which is more expensive than a CFL bulb…but it does last ten times longer, uses less electricity, and doesn’t have some of the CFL issues, such as mercury usage.

Perhaps we’re skeptical, but we’ll believe it when we see it. We’ll gladly be early adopters, and hope LED bulbs get to where we’d invest.

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