Sharp introduces color changing LED light bulbs
Images Gallery User Comments (2)RE "Like other LED bulbs, they provide bright, even light"
Actually the problem with LEDs is that they are dim and directional, the globe covering can help a little in spreading the light but in return means it's slightly dimmer.
40 watt equivalent replacement leds now cost 50 US dollars so the Sharp bulb is unlikely to be bright...
peterdub
- July 19, 2009 @ 08:07 am PDT
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Attractive LEDs = Less need to ban light bulbs, as less of them will be bought!
(and unattractive LEDS or other lights = no need to ban ordinary bulbs!)
Very inventive idea in the article.
Wonder how max brightness is of this LED lamp is though, that's been a problem with them so far...
Lot of new lighting ideas turning up these days, including higher efficient incandescents.
There are often comments of the type "wait for good LEDS so that light bulbs can be banned" since, unfortunately, Australia is on the same dumb course as us in the EU...
On the contrary, good LEDS also doesn't mean you have to ban ordinary light bulbs ...
Given that LEDs are presumably going to be so good that people actually WANT to buy them - unlike 'energy saving' fluorescents, CFLs - then
we are talking about a similar situation to transistors and radio tubes (valves) - the latter weren't banned just cause the others turned up.
People can of course make up their own minds anyway whether or not energy cost is worth it in relation to light bulbs and the advantages they - like all lights - have, and they might be in rooms/lamps that are not used that often anyway, so that energy savings hardly come into it, compared to upfront light bulb cost.
As for emissions, does your bulb give out any gases?
Even your power station might not give out CO2 emissions - which unfairly denies emission-free energy consumers what they want to use (ordinary light bulbs bought 19/20 times USA, 9/10 times EU).
For others linked to say coal power stations like a lot of Australians are, the power station emissions themselves can of course be dealt with, directly or by energy substitution
More on different lights and their uses,
and why a ban on light bulbs is wrong, on
http://www.ceolas.net/
Peter in Dublin, Ireland
peterdub
- June 21, 2009 @ 06:06 am PDT