Friday, February 27, 2009

The Colors of Solar LED Lights

Solar LED lighting is available in several colors. The most common colors are amber, cool white and warm white, although solar lights are also readily available in blue, green and red.

The white LED colors are made by combination of red, green and blue or blue LEDs with a special phosphor coating. The phosphor used to produce white LEDs lowers their efficiency, so white LEDs take more energy to operate. However this process is being improved over time and the amount of energy required to run white LEDs is still very low compared to incandescent and florescent lighting. Colored LED solar lights are less expensive to make, which is why you see a large number of low cost amber LED garden lights that typically operate with a single rechargeable battery.

“Cool white” and “Warm white” refers to the Kelvin temperature of the light. Kelvin is a measurement of the visible light spectrum. The lower the Kelvin temperature the more yellow/red the light. The higher the Kelvin value the more blue the light. Some general ranges might be, warm white 2700- 3800 Kelvin , cool white 4000 – 4500K and 5000K + daylight. A good chart to visualize Kelvin can be found here - International Cinematographers Guild. Another source of information to better visualize Kelvin temperature scales can be found here http://www.schorsch.com/kbase/glossary/cct.html.

White LEDs are typically offered as “Warm” or “Cool” this gives you an idea of the color of the light that you can expect. If you prefer a golden glow, choose a warm light. If you are looking for more of a daylight shade choose a solar light listed as cool or white.

ComfortAndSavings.com offers solar LED lights in variety of colors. Follow this link to see the brightest “warm” and “cool” white solar lights we offer.

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