Tag Archives: lights
In Focus: GaN-on-Si LEDs
Plessey Semiconductors has announced earlier this month that samples of its LED products using gallium nitride (GaN) films on 6-inch silicon substrates are now commercially available for sampling, which is the first of its kind across the industry. The development of comparable quality LEDs on silicon substrates to current standards is considered a holy grail [...]
150K Solar Street Lights Planned in Mecca
The scale of this solar street lighting project in the Saudi Arabian holy city of Mecca is truly breathtaking. However, what is even more breathtaking is the conclusions can one draw about the value proposition of solar in a place where oil generated electricity comes in at a mind numbingly low 0.006 per kilowatt hour. [...]
Why Solar Lighting is the Future
Solar energy has been harnessed by humans for thousands of years. From the earliest times, our ancestors used the sun’s energy either to heat their bodies or to dry food and clothes. But it has only been in the last two centuries that we have begun using solar energy to produce electrical energy. The discovery [...]
In Focus: The LED Revolution
Initially just an innovative way to provide the lights on indicator lamps and remote controls, and then developed into an exciting way to add colour to interior design projects and modern venues, the light emitting diode is now wending its way through the lighting market on an eco-warriors mission to replace the standard incandescent bulb. [...]
SWITCH LED Lights Gain U.S Popularity
SWITCH Lighting, a maker of Light Emitting Diodes lights to replace incandescent light bulbs, is now retailing at over 350 participating Batteries Plus stores across the U.S. The company’s LED lights, a more sustainable lighting alternative to incandescent bulbs, save up to 80 percent energy compared with traditional lights. Another innovation behind SWITCH LED bulbs [...]
Next Generation LED Wafers
A recent article published at this site discussed the prospectus for lowering the cost of LED lighting by the transition to less-expensive wafers such as silicon (Si). This follow-up article discusses some of the technical issues surrounding this thrust in technology. Gallium nitride (GaN) is one of the top thin-film epitaxial layers used for high-brightness LEDs but it has required relatively [...]
In Focus: Solar Power Street Light Design
Ever wonder how solar powered street light projects are designed? Here is a step by step guide. Step 1 – Find area in need of street lights The first thing to figure out is the length of road in need of street lights. This can be a small entrance road only a couple hundred of [...]
Urban Oasis: Street Signs That Charge Our Gadgets
All of us are very fond of spending some time outdoors, whether it is a leisurely walk, in the public parks or just relaxing on the park benches and having a nice chat with our friends and relatives, this gives a break from the routine work. But soon on realizing that the mobile is running [...]
100K Solar LED Bulbs Light Up Tokyo
LED lighting installations are probably one of the most universally loved and accepted green technology. They became popular pretty quickly to a point where they have now become common place and that obviously is a good thing. It just shows that you not only need green solutions, but ones that actually can match and better [...]