Function: 1.Adopt IR power tube and double fast ball bearing fan,durable and long lasting. 2. Radiator with large fins ensures long-term stability and power redundancy is more than 50% (25℃). 3. Classic digital tube display, intuitive and durable, high temperature resistant. 4. It can display voltage and current when the current is constant, and it reflects the discharge state. 5. The voltage and current wiring connectors are separated and properly connected to eliminate the influence of wire resistance to voltage. How to use: