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<p>[QUOTE=&quot;mdjensen9, post: 2096509, member: 73784&quot;]Advantages of LED. Long life. Cooler burning over incandescent. No Mercury as in CFL. It&#039;s all about CRI (Color Rendering Index, or how close to the actual true color. An incandescent is a 100 CRI), Lumen is light output but maybe most important, CCT (correlated color temperature). This is measured in K = Degree Kelvin. 4000K is Bright White. 5000K+ is daylight and starts to put the Blue Spectrum into play. Many coin and Jewelry store cases use Halogen bulbs. Very hot, white 2700K and 100 CRI. True color but for photography, lots of reflection. Trial and error.[/QUOTE]</p><p><br /></p>

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