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A REVOLUTIONARY new bulb which slashes household lighting bills by 75 per cent has been unveiled.
Dubbed "the holy grail" by scientists the bulb, created by Cambridge University scientists, uses cheap LEDs which emit brilliant light but use very little electricity and last up to 60 years.
Safety and toxicity aspects
The toxicology of GaN has not been fully investigated. The dust is an irritant to skin, eyes and lungs. The environment, health and safety aspects of gallium nitride sources (such as trimethylgallium and ammonia) and industrial hygiene monitoring studies of MOVPE sources have been reported recently in a review.
Originally posted by forevergeek.com
Philips LED Street lamps
Sunday, Jul. 17 2005 | Author: Dave
Philips has put up the first street lamps that use light-emitting diodes (LEDs), which last four times longer than normal street lighting, the Dutch electronics group said on Friday. With 50,000 light hours, LED lamps do not have to be changed for 12 years when lit for an average 11 to 12 hours a day.
Until now, LEDs were used as indicators on electronic goods, bicycles and cars, but technical developments have made them so bright they can now be used for any normal lighting situation.
Gas-filled streetlamps last an average 12,000 hours, and replacing them is costly and also hampers traffic, especially in hard-to-reach places such as tunnels.
LED streetlamps are twice as expensive as current street lighting with a similar design, but this is compensated for by the longer lifespan, Philips product manager Bram Lansink said.
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Originally posted by mrmonsoon
reply to post by skibtz
Not that this is not a good thing, it is slightly misleading, let me explain.
100,000 hour's divided by 24 hours per day equals 4166.6 days
4166.6 days divided by 365 days per year equals 11.4 years.
I know, I get it, the number assumes the bulb is not on all day everyday, but that was not clear.