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The L-Prize competition was designed to spur development of LED light replacements for 60W incandescent lamps and PAR38 halogen lamps as well as an ultra-efficient "21st Century Lamp". [1] It was established by the United States Department of Energy (DOE) as directed by the Energy Independence and Security Act of 2007. The original competition ...
As with the case of LED MR lamps, LED PAR lamps generally use an array of individual LED elements that are unsuitable for reflector operation. Nevertheless, some degree of beam control can be obtained with aperture or lens, and LED PAR 38 replacements with a 40° spread is common. Models built for stage lighting may use less similar dimensions.
Left to right: MR16 with GU10 base, MR16 with GU5.3 base, MR11 with GU4 or GZ4 base Line drawing of an LED MR16 lamp, with a heatsink rather than a reflector. A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen as well as some LED and fluorescent lamps.
Deluxe Warm White ≈87 3000 N/A N/A WX Sylvania White Deluxe ≈85 3500 N/A 79 N Natural ≈90 3600 N/A 34 N/A Deluxe White ≈85 3850 W-SDL 38 CWX Deluxe Cool White/Kolor-rite ≈90 4000 N/A N/A C41 GE Cool White Utility (Enhanced CWX) ≈87 4100 N-SDL, N-EDL N/A C50/DSGN50 GE Chroma 50/Philips Colortone 50/Sylvania Design 50 ≈90-99 5000
According to this source, 1 November 2011 to 30 September 2012 will be a transitional period and as of 1 October 2012, imports and sales of ordinary incandescent bulbs of 100 watts or more will be prohibited. The first phase will be followed by a ban on 60-watt-and-higher incandescent light bulbs starting in October 2014.
A 150W Halogen floodlight. Fixed-mount lamps are used in indoor and outdoor flood lighting, although improvements in LED systems are displacing halogen lamps. Round spotlights with built-in multifaceted reflector lamps are widely used in residential and commercial lighting. Tubular halogen lamps provide a large quantity of light from a small ...
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