Compact 20 A PWM solar charge controller designed for 12/24 V systems in campers, caravans and boats — protects batteries and offers multiple monitoring options.

• Rated current: 20 A; fully automated operation with auto 12/24 V selection.
• PWM charging with reverse-current cut-off; accepts up to 320 W (12 V) / 640 W (24 V) solar input.
• Protection: overcharge, over-discharge, overload, short circuit and overheating.
• Communication & monitoring: connect to MT50 remote meter (LCD), optional Wi-Fi module with free Android/iOS app, or RJ45-to-USB for PC.
• Self-consumption: 8.4 mA (12 V) / 7.8 mA (24 V); working temperature: -35 °C to +50 °C (-31 °F to +122 °F).
• Terminals accept up to 10 mm² wire; multiple mounting holes for easy installation.
• Size: 15.9 x 8.1 x 4.8 cm (6.3 x 3.2 x 1.9 in); weight: 300 g (0.66 lb).
• Load on/off button, LED indicators and temperature sensor; supports sealed, gel and flooded batteries (default: sealed).

Installation: this product comes with an instruction manual explaining connections and operation; battery type can be changed using the MT50, Wi-Fi app or PC connection.