The Lighting Paradox: Cheaper, Efficient LEDs Save Energy, and People Use More. New research at Rutgers University has shown how to slash the cost of highly efficient light emitting diodes (LEDs) and significantly reduce lighting’s energy requirements. The energy savings, however, will likely be eroded as people find new uses for the inexpensive lights. It’s a classic example of how a solution to a problem may cause more problems, or at least nullify the solution. "I am doubtful that we will save any energy by going to LED lights," said Thomas Theis, director of the Institute for Environmental Science and Policy at the University of Illinois at Chicago. LED lights use just 10 percent of the energy of incandescent lights and less than half the energy of today’s compact fluorescent (CFL) bulbs.
The lights are commercially available today but haven’t been widely adopted because they are more expensive than either CFLs or incandescents. "We have made many phosphors covering the entire visible spectrum," Hu says. "We're addicted to light," Theis said.
מבט על לדים לילה. LED street lights | Zanran. LightingEurope publishes research on LED-based human centric lighting - LEDs. Human-centric lighting, generally tunable solid-state lighting (SSL) that increases our comfort or wellbeing, can become a significant segment of the overall LED-based lighting market, according to LightingEurope.
A joint study by LightingEurope, the German Electrical and Electronic Manufacturers’ Association (ZVEI), and consulting firm A.T. Kearney projects human-centric lighting as a multibillion-Euro business that could hit EUR 1.4B (billion) in 2020. Human-centric lighting can have a range of positive impacts on society, according to the new research and other studies on the topic. At its simplest, such lighting allows us to sleep and rest best and perform with greater productivity during waking hours. Tunable lighting has also been shown to accelerate healing and help prevent chronic diseases. The study states that European industry is uniquely poised to capitalize on the opportunity in part because of a "solution-oriented understanding of customer requirements.
" LED street light. An LED street light (also referred to as LED road lighting) is an integrated light-emitting diode (LED) light fixture that is used for street lighting. Design and style[edit] LED street light beam pattern An LED street light is an integrated light that uses light emitting diodes (LED) as its light source. These are considered integrated lights because, in most cases, the luminaire and the fixture are not separate parts (except LEDGine-based luminaires). New in manufacturing, the LED light cluster is sealed on a panel and then assembled to the LED panel with a heat sink to become an integrated lighting fixture.
Different designs have been created that incorporate various types of LEDs into a light fixture. The current trend is to use high power 1 watt LEDs. Heat sinks for LED street lights are similar in design to heat sinks used to cool other electronics such as computers. The lifespan of an LED street light is determined by its light output compared to its original design specification. Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium. LightSavers: Energy efficient outdoor lighting and advanced controls | LightSavers. Next Generation Luminaires Design Competition. LEDs Magazine - LED Technology, Solid State Lighting and LED Lighting Applications. Solar street light project report. Let’s hear it for LEDs. LEDs Magazine - LightingEurope publishes research on LED-based human centric lighting. _assets/files/LED-Report-Full-FINAL-low-res(2).pdf.
Next Generation Luminaires Design Competition. רשימת ערים -לד. Listen - Positivlisten. Energy efficient outdoor lighting and advanced controls | LightSavers. Solid-State Lighting: DOE Municipal Solid-State Street Lighting Consortium. LED street lights | Zanran.