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LED Light Bulbs That Last 60 Years to Get Cheaper

Super-Efficient LED Bulbs to Get Cheaper
Those old-school incandescent bulbs you grew up with are on their way out, deemed too inefficient for a continued life in today's eco-friendly society. But their replacements, compact flourescent (CFL), have their own share of issues. Some people find that the next-gen bulbs give them headaches, and since each one contains a bit of mercury they aren't exactly green themselves. For that reason, many have seen LEDs as a possible replacement, but they have their issues, too, primary among them being cost. That could change thanks to a British professor's newest tech, which could make the bulbs considerably cheaper.

LEDs are small and don't give off much light, but they last for literally decades (like, 60 years) and give off virtually no heat, making them three times more efficient than the twisty CFL bulbs. Professor Colin Humphreys at Cambridge University has come up with a way to make them far cheaper than normal, creating a more efficient way to produce gallium nitride, a material required for the production of LEDs. His discovery could pave the way to LED bulbs that cost less than $5 a pop. However, we're still at least a few years away before these could go into mass production, meaning you're going to have to keep hitting the Asprin or guiltily using your old incandescent bulbs. [From: The Daily Mail]

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Inventors Create Pill-Sized Bulb That's Brighter Than a Street Lamp


Alternative lighting solutions are all the rage right now. People are finally realizing that a big, clunky incandescent light bulb, which gets so hot it burns your hand, is not a particularly efficient way to illuminate a room. But despite the quick rush to change over to compact fluorescent (CFL), concerns over the potential health impacts and mercury content in CFLs are driving folks to look for other alternatives, and a little bulb the size of a Tic Tac may be the solution.

The bulb, filled with argon gas, pumps out an impressive 140 lumens (the standard way of measuring the efficiency of a bulb) of light per watt. More lumens per watt means that more of the electricity that is pulled in to the bulb is turned into light instead of being wasted as heat.

The current champion in the lighting world, the LED, can pump out 70 lumens per watt. Compact fluorescent blubs clock in at around 50 per watt, while the standard incandescent bulb offers a measly 15. On top of that, one tiny little argon bulb can crank out 35,000 lumens, plenty enough to act as a street lamp.

Is this the future of lighting? That, of course, depends on cost and lifespan.

From CrunchGear

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Energy-Saving Bulbs Causing Migraine Headaches

Compact Fluorescent Bulbs Causing Migraine HeadachesCompact fluorescent bulbs, the twisted looking replacement lights that use as little as one fourth the power of their common incandescent counterparts (and last much longer), are being adopted worldwide in an effort to reduce energy consumption. They are even becoming mandatory in some countries -- a little troubling according to the Daily Mail, which reports that health experts in the U.K. say the green bulbs can cause migraine headaches or other disconcerting symptoms in many people.

The bulbs work in the same way as the long, traditional fluorescent tube lights seen in many commercial establishments. This means that they can produce light that subtly flickers, unnoticeable by many, but a big problem for others, especially epileptics, who can suffer from seizures under fluorescent bulbs. According the U.K.'s Migraine Action Association and other health organizations, the lights also cause headaches, as well as nausea, dizziness, and even physical pain for those suffering with lupus, according to the study.

In both the United States and the United Kingdom, traditional incandescent bulbs are set to be completely phased out by 2012. Surely those with medical conditions can be given exemptions easily enough, but if they can't simply walk into a store and buy a traditional bulb, just how many companies will continue manufacturing them and how much will they cost? Will traditional bulb clubs be the marijuana-buying clubs of the 21st century?

Such recent health concerns around energy-saving fluorescent bulbs might be another reason to push research into production of LED-based lighting options, which are even more efficient than CFL lighting, and even more durable, with a single bulb potentially never burning out. Such LED-based bulbs are available now, but at per-bulb costs that dwarf those of the relatively expensive CFL bulbs.



From The Daily Mail

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