LEDs

Best Solar LED Lawn And Garden Lights

Since LEDs are an efficient light source and draw far less power than traditional bulbs, they are perfect for off-the-grid applications where solar cells charge a battery that powers the lamp. Large-scale applications of this concept include LED road lane markers, but smaller-scale projects like lighting your lawn or garden are perfect uses for them [...]

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Breakthough: $25 LED Light Bulbs Available Soon

I’ve been testing the new Zeta-Lux 2 LED light bulb from EarthLED. This bulb looks similar to the first Zeta-Lux –but this bulb retails for $25 instead of $40. This means you can get a 40-watt equivalent LED bulb that consumes just 6 watts. The color temperature of the Zeta-Lux 2 is a pleasing 2800K. [...]

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Tested: 240 Lumen LED Bike Light For $20

Important Update: After testing a second unit, I can no longer recommend this product as a bike light. The trouble is that the flashlight popped out of its container whenever I rode over a curb. The problem seems to be the weight of the flashlight. One positive note — the Cree flashlight itself proved to [...]

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Efficient LED Light Bulbs For The Home

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LED light bulbs have some huge advantages over incandescent and compact fluorescent (CFL) bulbs. But they perform differently, so here’s your guide to understanding LED bulbs so you can enjoy their benefits and play to their strengths.

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MetaEfficient Keyring Tools For 2010

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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

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° light like a regular [...]

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Top Mountain Bike LED Lights Under $300

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 systems that stand out as [...]

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World’s First 100% Solar-Powered Stadium

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 to power [...]

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Efficient Organic LEDs Demonstrated

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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The Best LED Reading Lamps

Nighttime can be prime reading time, and a small reading light is invaluable in a darkened room, or to avoid disturbing a roommate or spouse. The small size and directional light output of LEDs make them ideal for personal reading lights. Here are four of the best LED reading lamps, perfect for the bedroom, dorm [...]

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