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The saving energy policy all the world pushed to develop and the alternative of electrical lamps' and found the lighting Emitting Diode _LED_
Now ' the LED is the most lighting sources to be used according to its features' as the low weight ' long life' low power voltage' speedy light' shock resistance and beside of all the multicolor option be in same lamp .
Saving energy and environment mad the LED as target of new technology of saving power with lighting also the next generation of lighting sources.
The development technology' made the LED as part of daily life' and the LED lamp took the place of ordinary lamps which used a lot of energy' such as car lamp ' architecture lighting and inside. lt is surely that LED started to be more popular used and specially lighting lamps.
The lighting level of LED was 20-30 /watt by 2003 as is slightly better than electrical and halogen lamps' but today with its improvement reach 60-70/watt' which be similar to fluorescent lamps.
Lighting with LED gives the much features of saving energy by using with special lighting such as traffic signals' street lighting' and decoration also with all solar energy applications.
For example' traffic signals with normal lighting lamps used 150 watts' however ' the LED ' when be used ' saved about 90% of electricity and specially using the solar modules' saving be more.
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