Looks good! It’s a large-scale installation of Solar LED bricks. I couldn’t identify the location, but the bricks are Meteor Solar LED pavers. Solar bricks are self-contained — during they day they charge via the sun, and turn on automatically at night.

Sharp is introducing a new range of solar-powered LED streetlights. These self-contained lights charge during the day, and switch on automatically when darkness falls. They can operate for 10 years straight without maintenance. They make use of new, high-intensity LED spotlights, which are ideal for public parks. The LEDs illuminate with a directed light and don’t send light into the sky (thus causing light pollution). The streetlights also feature a Seismic Motion Sensor that detects the occurrence of a major earthquake. If an earthquake is detected, the light turns on at full brightness during the night, to assist during possible power interruptions.

Via: Sharp Press Release

Motion-sensing LED lights — these lights are perhaps the most efficient lighting devices available today. They switch on whenever their infra-red sensors detect movement in a room — such as when someone begins to walk down a dark hallway. I’ve been testing them in my own home, and I’ve found them to be effective and non-obtrusive. At night, I’m able to go down two floors to the basement, without turning on any lights. The motion-sensing LEDs in the ceilings switch on as I move about the house.

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Last year, we featured a nightclub lit entirely by LEDs, but here’s an office building that is said to be the first to be lit by 100% LED light. The lighting was provided by the Netherlands-headquartered Royal Philips Electronics. To showcase the potential of LED light, Philips designed the lighting system to be warm and visually comforting. A total 422 LED fixtures were installed into the building’s false ceilings. The offices are lit with fixtures that incorporate 12-16 high power LEDs, each rated at 2.6 watts. LED spotlights are used to illuminate the corridors. (more…)

Koncept has released a new series of their I-Tower LED floor lamps. It’s good to see LED floor lamps becoming widely available. These lamps use the latest generation of high-power LEDs, which means they are brighter than the older I-Tower lamps, but they actually uses less power (8.8 watts). There are two models: a daylight version (~5500 Kelvin) and a warm white version (~3500 Kelvin). The lamps have a built-in 4 step dimmer. Koncept says the lifespan of these lamps is “at least 40,000 operating hours”. They are available from Amazon for $195.

The Geobulb is a 8 watt LED light that replaces a 60 watt incandescent bulb. It generates 800 lumens of light to be exact — either warm white light or cool white. This bulb has a sleeker design than some of the LED lights I’ve seen — check out that aesthetically pleasing heat sink. (more…)

I’ve been testing the Tri-L LED light by Altus Lumen. I have to admit that this light has become one of my favorite gadgets. The design of the Tri-L shows great attention to detail. The metal housing is made out of 85% recycled magnesium which is lighter than aluminum, so the Tri-L feels solid yet light in your hand. When folded up, the light acts as a flashlight, and measures just 110×60x20mm, so it fits nicely in a pocket. When unfolded, the light becomes its own 360 degree tripod stand, and can be used as a serious worklight or booklight.

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Last year, Philips showed off their LivingColor lamps at a media event. Although these efficient, color-changing LED lights are still not available in the U.S., you can now buy your own for a hefty £97 ($191) from the U.K.

Each compact light can illuminate 16 million unique colors, all of which can be controlled via an included wireless RF remote. You can set any remote to control up to six fixtures simultaneously, keeping their colors in synchronization for a dramatic effect. Since it uses some seriously bright LEDs, Philips designed a special heat sink into the lamp that looks more like a work of art than a technical necessity.

It’s called the GreenPix Zero Energy Media Wall, and with 2,292 individual color LEDs, comparable to a 24,000 sq. ft. monitor screen, it’s said to be the largest color LED display in the world. The wall is solar-powered too — photovoltaics are integrated into the wall’s glass curtain, and it harvests power during the day, to illuminate the display at night. (more…)

This 13 watt bulb, the Evolux by EarthLED, is said to be first LED light to be able to replace a 100 watt incandescent. The lifetime of this bulb is rated at over 50,000 hours — which is five times longer than a compact fluorescent bulb. Other advantages of LED bulbs is their ability to brighten instantly, and be switched off and on rapidly without problems. They also contain no mercury. LED-based bulbs do, however, require more energy to manufacture that CFL or incandescents.

The Evolux uses a CREE light engine, and it contains a small fan to cool the circuit board. EarthLED has a video of the bulb in action, and also some photos showing the type of the light it renders. The Evolux bulb sells about $90 right now. If you are serious about energy efficiency, or if you’re using solar power, this might be the bulb for you.

Via: EcoGeek

LEDs really shine as reading lights and desk lights. LEDs have a directed beam, so they do not disturb others when used as reading lights (in bed for example). LEDs also do not get hot to the touch, so there’s no risk of burns, or excess heat in the summer. Because LED light is so focused, even a 100 lumen LED desk lamp will seem quite bright when used as a task light. Here’s a survey of what’s currently available: (more…)

This “Rotondo” rechargeable lamp uses LEDs for illumination — it will run for about eight hours before it needs a recharge. The lamp is also water resistant and is made with mouth-blown parnaterraglas with a frosted finish. It will cycle through a spectrum of colors, and can be stopped when the hue you desire is reached. It’s available from Lightology for $131.

Ann Arbor is on its way to being the first U.S. city to light up its downtown with 100% LED-based streetlights. The city expects to install more than 1,000 LED streetlights beginning next month. The city anticipates a 3.8-year payback on its initial investment. (more…)

LEDs lights are very efficient, but because of their structure, much of the light in standard LEDs becomes trapped, reducing the brightness of the light. Because of this, LEDs are only useful for “task lighting” in the home — as floor lamps and desk lamps. Now researchers believe they have found a way of introducing a new generation of LEDs into households that are brighter and use even less power than standard energy efficient light-bulbs.

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This is a great innovation — the streets of Europe could soon be lit by "solar trees". These self-contained streetlights could save cities energy and money too. Unlike regular streetlights, they do not require costly underground wiring to install, and they are immune to blackouts. Designed by Ross Lovegrove, the lights have 10 solar panels arrayed at the top of tree-like branches, which charge built-in batteries. The batteries then power LEDs for illumination. Compared to conventional streetlights, they emit much less light pollution, because LEDs generate a very directed light. The trees also incorporate light detectors! So the lights automatically turn on sunset and off at sunrise.

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Here are some lanterns that can be charged via the sun or via human power. Freeplay’s Indigo is a well-designed, rugged lantern. It’s one of those products that, when you hold it, feels extremely solid. This lantern shines with a cluster of seven bright LED bulbs. It won’t brighten a room, but at full power, it provides good illumination. It has a built-in Ni-MH rechargeable battery. The battery can be charged via two power sources — AC  power, and by hand cranking it. A 60 second wind will provide up to 2 hours of light in the lowest setting or 5 minutes at maximum brightness. (more…)

LED Christmas lights use 90% less energy than incandescent bulbs. They are also brighter, less prone to breaking, and cool to the touch. One thing to note however, is that almost all Christmas lights are made in China, probably with questionable materials and labor practices, and then transported half-way around the world. You can find LED Christmas lights at Amazon. You can also find some snowflake-shaped and color-changing Christmas LEDs from Environmental Bulbs.

The Barcode nightclub was built in a disused brick Victorian railway arch in Vauxhall, south London. The entire nightclub is illuminated using only LED lights, and the sound system is also energy efficient. The architect, Woods Bagot claims that the system consumes “less electricity than the power used to boil a kettle”. If they could just give a watt hour figure I’d be happier! Still, this is a interesting example of all-LED lighting in a building, which I’m sure we’ll see more in the coming years. Because the LEDs give off very little heat, much less AC is required to cool the building in summer. See more pictures over the fold.

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The Canadian company Carmanah has introduced some new solar-powered LED road signs. The lights are completely self-contained and require no external wiring. The signs can often pay for themselves in a couple of years, due to the amount of energy they save.

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This durable spotlight comes with its own solar panel, and uses 16 LEDs to produce light. It can run for 12 hours on a single charge. It has a weathertight anodized aluminum housing, and impact-resistant hand-soldered circuitry. The result is a solar light that will perform year after year (many solar lights are meant to be replaced every summer). Available from Gardner’s Supply Company for $59.95