A typical household incandescent light bulb uses electrical energy at a rate of 40 to 100 watts, while the energy-saving compact fluorescent lights which are replacing them use 8 to 20 watts to yield the same light output.
Solar, Windup, Dynamo, and Faraday Powered LED Torches and Gadgets
Handheld torch with built-in 'Faraday' coil and batteries, recharges by shaking! Shockproof and waterproof to 2.5m with three super bright LEDs.
Three ultra bright LEDs Rubberised on-off switch In-built rechargeable batteries Shaking recharges batteries One minute shaking yields up to 30m light Boxed Shockproof and waterproof to a depth of 2.5m Select one or three LED illumination Two coils for faster power generation Works under water! Dimensions: 220mm x 40mm x 50mm approx.
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Three ultra bright LEDs
