Faraday Perpetual Flashlight
USD $6.9 - $8.9 /Piece
Min.Order:50 Pieces
Qinghua Science & Education Equipment Co., Ltd.
Size:25.5 x 5.5 x 5.5 cm A new torch using the principle of Faraday's law of Induction that never needs batteries. Shaking the torch passes a magent through a copper coil which creates an electric current. This current is then stored in a capacitor which powers an uttra bright LED which can be seen for up to a mile. After an inital 3 minutes shake to get it going. the torch then only requires 45 seconds of shaking to provide enough electrical energy to power the LED light for up to 5 minutes.