The product is used to control solar panel and Ba-tte-ry in solar system automatically. It is easy to set up and operate.

Features:
Automatically control the solar panel and Ba-tte-ry in solar system.
Over-load & short-circuit protection.
Reverse discharging & reverse-polarity protection.
Under-voltage and over-charging protection.
Protection from lightning strike.
Prolong the Ba-tte-ry life cycle and keep the load work well.
Easy to set up and operate.
Suitable for small solar energy system.

Specifications:
Color: Black
Rated Voltage: 12V / 24V (Auto Switch)
Rated Charge Current: 20A
Rated Load Current: 20A
Stop pow-er sup-ply Voltage: 10.8V / 21.6V
Resume pow-er sup-ply Voltage: 12.6V / 25.2V
Stop Charging Voltage: 14.4V / 28.8V
Temperature Compensation: -3mV/Cell/°C
Operation Temperature: -20°C~60°C
Item Size: 103 * 95 * 38mm / 4 * 3.74 * 1.5in
Item Weight: 117g / 4.14oz
Package Size: 11.5 * 10 * 5.2cm / 4.5 * 3.94 * 2in
Package Weight: 153g / 5.41oz

Note:
1. Order of Connection: connect storage Ba-tte-ry firstly, then connect the solar panel; Order of Disconnection: disconnect the solar panel firstly, then the storage Ba-tte-ry; otherwise it will cause damage to the controller.
2. The inverter can't be connected to the controller directly.
3. The controller will generate heat during operation, please notice that put the controller on flat surface with good ventilation.

Configuration Selection:
For 12V System, Ba-tte-ry voltage is 12V, recommended input voltage of solar panel: 16-22V, when actual input voltage>50V, controller will be damaged;
For 24V System, Ba-tte-ry voltage is 24V, recommended input voltage of solar panel: 32-44V, when actual input voltage>50V, controller will be damaged.