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 magnetic bicycle mounting bracket. Built in dynamo mechanism, rechargeable batteries, and a DC output socket.
Three ultra bright LEDs Use as a handheld torch and a bike light Secure fixing / quick release magnetic bicycle mounting bracket Built-in rechargeable batteries and dynamo Pull out handle and rotate to charge (two rotations per second) One minute yields up to 30m of light Boxed with instructions Cable to charge other devices (instructions not provided) Save a fortune in batteries with this light Rainproof On-off button Dimensions: 150mm x 55mm x 50mm Due to the brightness of the LEDs this torch is not suitable for young children.
TREBOONA.com
Three ultra bright LEDs
