Why hold a few moving magnets, manual power LED flashlight bulb will shine?
Compared with ordinary torches, the LED flashlight has high luminous efficiency, that is, it glows under the same brightness, and the same battery LED flashlight has a long luminous time. So you don't have to use your hand to generate electricity.
A magnetic magnet is used to move downward, the magnet field line cuts the coil on the periphery of the magnet, and the coil generates electricity to recharge the rechargeable batteries at both ends of the coil, so that the LED bulb emits light.
