Natural History Museum, Rotunda Building
Natural History Museum, Rotunda Building

April 22nd, 2009
Los Angeles, California

After five years of restoration, modernization and seismic retrofitting, the historic Rotunda building of the Los Angeles County Natural History Museum in July 2010 reopened with a new face and a whole new set of lighting—decorative LED bulbs supplied by LEDtronics, Inc.

Most of the PAR38-180 bulbs we supplied the museum were positioned in a crisscrossing beam fashion around the perimeter of the 57-foot-high Rotunda dome. The rest were installed in recessed fixtures as down lights around the building’s upper walkway. Use of the 5-watt LED lamps represents a minimum savings of 4,000 watts when compared to the 50-to-60-watt incandescent PAR-style bulbs that might otherwise have been utilized.

The DEC-G25F-style frosted globe lamps we supplied the museum were used as accent lighting all around the inside perimeter of the Rotunda. The complete installed set of 1-watt LED bulbs only consumes about 160 watts, compared to the 2,240 watts that would otherwise be consumed had the architect designed in a similar set of standard 14-watt G25 incandescent bulbs.

The LED bulbs were installed not only to reduce energy consumption and improve light quality but also to reduce maintenance costs. Incandescent bulbs would go out often and the poor accessibility made replacing them difficult. Based on the LED’s 50,000-hour operational lifetime and the museum’s weekly hours of operation, maintenance teams will need to replace the LEDtronics lights only about once every 15-plus years.

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