language
The working principle of the flashlight is to provide electrical energy through the battery, through the circuit connection and control, make the luminous body (bulb or LED) emit light, and control the on and off of the circuit through the switch to realize the lighting function. At the same time, some flashlights also have additional functions such as brightness adjustment.
Video Number
Mobile Phone
E-mail:taishidai@hntsd.com
Mobile:+86-17638126305
Address: 1612, Block A, Yunfeng, Window of Green Space, Zhengdong New District, Zhengzhou City, Henan Province
