The flash is also one of the ways to increase the exposure, especially in dim places. Using the flash can help make the scene brighter. Chinese is called "electronic flash", also known as high-speed flash. Electronic strobes store high-voltage electricity through capacitors, which are triggered by pulses to discharge the flash tube and complete the instant flash. The color temperature of a typical electronic flash is about 5500K, which is close to the color temperature in the daytime sunlight. The light-emitting property is cold-light type, which is suitable for shooting hot objects.