For comparison, the luminous efficacies of tungsten filament incandescent bulbs, compact fluorescent lamps, and linear fluorescent lamps are ∼15 lm/W, ∼60 lm/W, and ∼80 lm/W, respectively. For LEDs to compete with incumbent technologies, improvements in luminous efficacy were required. In...
Light bulbsDouble-hurdle modelMany countries are currently considering bans on incandescent light bulbs and other policies to enhance the residential diffusion of energy-saving compact fluorescent lamps (CFLs). However the reasons for currently limited diffusion of CFLs are largely unknown. This paper ...
Lighting system including first-, second-, and third-light sources each having semiconductor light-emitting device. First source includes lumiphor; and is configured for emitting fi
the wiring had to be run from the inside of the house through a conduit to the sign. Along with the wiring requirements, the old system of illumination required frequent replacement of bulbs. This new invention corrects these problems eliminating the need for hard wiring and eliminating the need...
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Both growth chambers used full-spectrum ceramic MH 315W bulbs and were set at a constant 23 °C. All plants were watered as needed and fertilized twice a week with general-purpose mix NPK 20-10-20 (57.4 g/gal). For each light treatment, 18 individual plants of each plant line were ...
“Sylvania Ultra SE(tm) LED Light Bulbs with Color Dimming Sunset Effects,” downloaded on May 27, 2014 from https://www.youtube.com/watch?v=oZEc-VfJ8EU, 2pp. “USAI Lighting Catalog,” downloaded on May 27, 2014 from http://www.usaillumination.com/pdf/Warm—Glow—Dimming.pdf, 50...