Currently viewing the category: "LEDs"

MetaEfficient Keyring Tools For 2010

By On February 15, 2010 · 3 Comments

Here’s a MetaEfficient Keyring. It’s a collection of lightweight, mini-tools suitable for carrying on a keyring.

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Liquid-Filled LED Bulbs: 360 Degree Light

By On September 13, 2009 · 31 Comments

I’ve been testing a new LED bulb called the HydraLux. These unique bulbs are filled with a clear liquid coolant (a non-toxic paraffin oil). Other LED bulbs use large metal fins or fans for cooling purposes. The advantage of using a liquid coolant is that the LED bulb can produce 360° [...]

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Top Mountain Bike LED Lights Under $300

By On May 22, 2009 · 10 Comments

LED systems are natural choice for mountain bikers given their efficient power consumption, durable construction and distinctive white light. Finding quality LED light systems for mountain bikes under $300 isn’t easy, so we’ve scoured the net and studied dozens of reviews from Amazon, MTBR.com and retailers to find the LED [...]

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World’s First 100% Solar-Powered Stadium

By On May 15, 2009 · 18 Comments

A couple of years ago, we wrote about a 1.3 megawatt solar-powered stadium in Switzerland. A new solar powered stadium has been built in Taiwan for the 2009 World Games in July. Designed by Japanese architect Toyo Ito, the stadium incorporates 8,844 solar panels on the roof. The roof will generate enough energy [...]

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Efficient Organic LEDs Demonstrated

By On April 17, 2009 · 6 Comments

Organic light-emitting diodes (OLEDs) are a new type of LED where a thin film of organic compounds is used to produce electroluminescence.

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World’s Brightest Single LED Flashlight: Neofab Legion II

By On March 7, 2009 · 20 Comments

Update: There are now many other LED flashlights that exceed this one, see my article the Brightest LED Flashlights.

A triumph of careful thought, detailing and thorough testing, the Neofab Legion II is a new single LED flashlight that is said to produce a whopping 742 lumens. If accurate, this light [...]

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New LED Light Bulbs Can Replace 100W Incandescents

By On November 30, 2008 · 33 Comments

Update: See our latest post on LED Light Bulbs For The Home.

I recently had the chance to test two state-of-the-art LED light bulbs from EarthLED. LED bulbs have many advantages over incandescents and compact fluorescent: they use very little power, they last 10 years or more, and they [...]

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Efficient Use Of Solar LED Bricks

By On September 10, 2008 · 5 Comments

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.

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Sharp Introduces Earthquake-Detecting Solar LED Streetlights

By On September 4, 2008 · 2 Comments

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 [...]

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Motion-Sensing LED Lights: A Review

By On July 30, 2008 · 5 Comments

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 [...]

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