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LED flashlight charging characteristics

LED flashlight charging characteristics

2016-12-18

LED flashlight charging characteristicsRechargeable LED flashlight is a new flashlight with LED (light emitting diode) as light source. Because LED has high brightness, low power consumption, long life, small size and other characteristics, it is the ideal choice for portable lighting.
LED principle is similar. But the difference is, LED is not through the electronic transitions inside the atom to emit light, but by applying a voltage across the PN junction LED, the PN junction itself in a level form (in fact, is a series of energy), then the electrons at this level and jump to the light emitting photons.
Manual charging LED flashlight has two types. A cylindrical magnet is provided with a flashlight in this activity, can slide in a coil in hand-operated, coil currents and the rectifier for battery charging, light a LED light. The other is the first drives the generator to rotate with the hand pressing flashlight, the flashlight of the lower price, but this kind of power LED flashlight manual most of the reliability is not good.