Portable, Motion-Detecting LED Lights

Portable, motion-detecting LED lights are an efficient way to light rooms at night for a few minutes. This portable light from Maxxima, turns on when you enter a room in the dark (similar to motion-detecting outdoor lights), then turns off after 30 seconds of non-motion. It runs on four AA batteries (we suggest using NIMH […]

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Red LEDs to Grow Lettuce

Apparently red LEDs are 60% more efficient than fluorescent light when growing vegetables hydroponically. According to IEEE Spectrum Online: Of all the colors of the rainbow, red is lettuce’s favorite. Chlorophyll, the electrochemical engine of photosynthesis, runs on red photons. So if you are growing the vegetable indoors in a factory, why waste energy on […]

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LED Floodlights

Enlux, a company in Arizona, has created floodlights built from LEDs. They did this by removing the diodes from their individual plastic housings and clustering them on a heat-dissipating circuit board, known as a light engine. They also created finned aluminum housing that spreads the heat across its surface. The 22-watt floodlight ($80) gives off […]

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Indestructible Touch Sensitive LEDs

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These “Indium” lights use lithium-ion battery technology with high-intensity LEDs to produce a powerful light in a very small package. The Indium is controlled by a touch sensitive switch and has no moving parts. The casing is machined from solid aluminium bar stock on computer controlled machines, and is virtually indestructible

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