The article reports on the proposed conversion of the downtown lighting to light-emitting diode (LED) technology in Ann Arbor, Michigan in November 2007. The two-year project is expected to cut energy use for publi...
Research on the Lighting Performance of LED Street Lights With Different Color Temperatures While light-emitting diodes (LEDs) are a very efficient lighting option, whether phosphor-coated LEDs (PC-LEDs) are suitable for street lighting remains to... H Jin,S Jin,L Chen,... - 《IEEE Photonics...
Around 30-40% of the non-directional light emitted through a fluorescent bulb is wasted. This much light gets lost to various refractions or diverted to an area where it is not required. MostLED lightingoptions are directional. Thus, you can direct the light in any direction that you need ...
A team co-led team by the University of Surrey has successfully increased the levels of energy absorbed by wafer-thin photovoltaic panels by 25%. Their solar panels, just one micrometre thick (1μm), convert light into electricity more efficiently than others as thin and pave the way to mak...
Another consideration is that older lens housings are designed to work with incandescent bulbs, i.e., they’re designed to reflect light from a 360˚ source. If you use an LED that projects only in one direction, light will only appear to come from a small part of the turn signal or...
Answer:An LED that is red, green, and blue. Determination of the light intensity can be crucial, for example, if you want to design the lighting of a room, or in preparing for a photo shoot. In the era of the Internet of Things (IoT), however, light intensity also plays an importan...
About the Lux to PPFD Calculator You may find yourself comparing LED grow light specifications, where one light uses lux and the other uses PAR units such as PPFD. How do you compare the two? It is not possible to convert Lux to PPFD absolutely accurately without providing the light source...
The present invention rleates to a fluorescent material capable of converting blue light produced by light emitting diode into white light. It is formed from sulfide as matrix, activating agent for the said matrix and co-activator, and its preparation includes the following steps: mixing the above...
LEDs are more shock-resistant that fluorescent and incandescent bulbs and light up very quickly after power interruptions. Dib added: “The energy saved in this project is equivalent to powering 880 US households for one year, and the reduction of 7,000 metric tons of CO2 per year is equal ...
The lux is the International System of Units unit for luminous emittance. It’s used to measure the apparent intensity of light as it strikes a surface. The candela is the International System of Units (SI) unit for luminous intensity. It measures the ap