Full spectrum lighting products are readily available on the market these days. Many are expensive when compared to conventional lighting sources, making it important to know how to evaluate full spectrum products. It is not necessary to pay much more than for full spectrum lighting that delivers a light balanced across the visible spectrum than conventional lighting with peaks and troughs at various points in the spectrum. Full spectrum products should score above 70 on a Spectral Power Distribution test (SPD) or 2.0 on a Full spectrum Index (FSI). These measures determine that a light source remains even across the spectrum. Full spectrum lighting will be on sale at http://www.desklampdaddy.com/ through September.
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