Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity ...
“DPR is Wavien's Dual Parabolic Reflector system, which uses two off-axis paraboloid surfaces facing each other and a net effect of imaging a real life or digital generated object and relocates the ...
Jay Holben The next in line on our examination of lighting fixtures is the PAR, which is an acronym for Parabolic Aluminum Reflector. The classic PAR is a reflector and lamp all in one. It is a sealed ...
WASHINGTON -- Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the ...
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