The $107 million restoration of the Rotunda building of the Los Angeles County Natural History Museum, included the modernization of the building’s electrical system to support multimedia presentations and events, improve climate control and enhance exhibition lighting in an energy-efficient manner. Modernizing of the lighting system involved a retrofit from incandescent light fixtures with custom-manufactured LED systems without compromising the historical integrity of the original fixtures, notably in the Rotunda. Torrance, Calif.-based LEDtronics, Inc. provided 90 of 5-watt PAR38-180 Series bulbs and 160 of 1-watt DEC-G25F Series frosted bulbs, both of which offer a color temperature of 3000 Kelvin. The switch to LED will provide a dramatic reduction in lamp-generated heat, which will require much less air-conditioning to keep the older bulbs cool, and avoid causing the lead in the skylight to soften by keeping the temperature in the rotunda down.
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