http://www.outdoorlanternsonsale.com/lumens-bright/
What LED lumens? is it strong?
well i am wondering about bright LEDs as many websites calculate their lumens from their MCD which gives really small numbers while i see that LEDs are a lot brighter than that for example last year the power went off and i had 3 LEDs and a 9v battery and it was good enough to light the street not soo bright but covered the whole street enough to go around notice there was no moon on that day so thats quite great ?????
LED's are great. The link below leads to a very informative site. A quote from that site:
Osram has developed a small light-emitting diode spotlight that achieves an output of more than 1,000 lumens for the first time. That’s brighter than a 50-watt halogen lamp, thereby making the device suitable for a broad range of general lighting applications. The Ostar Lighting LED, which will be launched on the market this summer, can provide sufficient light for a desk from a height of two meters, for example. Its small size also enables the creation of completely new lamp shapes. Source: Siemens
An incandescent bulb is abut 2% efficient. A compact flourescent bulb is about 8% efficient. An LED is about 80% efficient. If we could switch to LED lamps we probably wouldn't need to build another electrical generating plant for years because of the reduced demand.
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