450W 20A 12V 24V Step-down MPPT Solar Controller LED Display Intelligent Cooling Fan for Lead-acid/Lithium/Gel Battery

450W 20A 12V 24V Step-down MPPT Solar Controller LED Display Intelligent Cooling Fan for Lead-acid/Lithium/Gel Battery

Specification:
- Display screen: LED display
- Working voltage: 18 - 80V
- Conversion efficiency: 98%
- Maximum current: 20A
- Rechargeable voltage: 12V 24V
- Rated power: 12V 20A/240W; 24V 20A/500W
- Working temperature: -20℃ ~ 60℃
- Compatible battery: lead acid / lithium / gel battery, etc.
- Protection level: IP30
- Dissipation method: natural cooling + intelligent fan
- Product size: 113 x 86 x 39mm
- Weight: 400g

Precaution:
- It is strictly prohibited to use the controller under excessive pressure or power. The controller does not work when it is only connected to the battery and not connected to the solar panel.
- Before installing the controller, please confirm the voltage range, which must be consistent with the battery voltage. It is strictly prohibited to charge low range storage batteries with high range voltage.
- Installation steps: First connect the solar panel to the controller, and then connect the storage battery. The input and output of the controller are both red positive and black negative.
- The length of the wire connecting the controller should be as short as possible to reduce electrical losses.
- Solar panels should be placed in a place without any obstruction of sunlight for use.
- The controller will generate heat during operation, and it is recommended to install it in a ventilated and heat dissipating environment.
- The blue (black) wire in the charging wire of the original electric vehicle charger is the positive electrode, and should be connected to the red wire of the controller output wire.
- It is strictly prohibited to replace fuses with larger ones or copper wires. The controller fuse is 25A.

Package Included:
- 1 x MPPT Solar Controller

Note:
- Battery is not included.