1. DC output: DC line can transfer switching power supply or transformer through AC/DC current to other places, such as liquid crystal display, surveillance camera, notebook computer, equipment controller power supply.
2. Charging of mobile phones and digital cameras: When we usually buy mobile phones, others will send a charger DC cable with them. In addition to charging our usual mobile phones, the DC line can also be used to transfer data.
The use of the DC line is diverse and the price is cheap, which is very beneficial to people's daily life.
