A solar cell or photovoltaic cell is a device that converts light energy into electrical energy. Solar cells have many applications. They have long been used in situations where electrical power from the grid is unavailable.
Solar, Windup, Dynamo, and Faraday Powered LED Torches and Gadgets
Windup/dynamo powered with adjustable head straps, includes compact charging unit (also charges mobile phones), and extension lead, as well adjustable light angle and ecconomy or max-brightness modes.
Three super bright LEDs Soft-touch button operation Adjustable lamp angle One LED (ecconomy) or three LED modes Comfortable and adjustable tri-band head straps In-built rechargeable batteries Separate dynamo charges batteries (built-in with LED charging indicator) Pull out the handle and turn to charge (two rotations per second) One minute charge yields up to 15m of light Charging extension cable Boxed Dynamo also charges mobile phones No-hassle lighting saves a fortune in batteries Lightweight and ergonomic Dimensions of headlamp: 60mm x 50mm x 30mm Due to the brightness of the LEDs this torch is not suitable for young children.
TREBOONA.com
Three super bright LEDs
