1. The LED flash is illuminated by an electronic transition inside the atom. By applying a voltage across the PN junction of the LED, the PN junction itself forms an energy level, and then the electron jumps at this energy level and produces photons. luminescent. Its use consumes more energy.
2, LED fill light features low energy consumption, high brightness, generally used in camera phones or digital video cameras, used for light fill when the light is insufficient. Since the brightness of the LED light-emitting diode is much lower than that of the real flash, it can only play the role of "filling light".
3, the photographic effect of the flash will be higher than the photographic effect of the fill light.