PWM charger ideal for solar DC lighting system intelligent control with MCU - maintains the battery in a fully charged state overcharging, overdischarging and overload protection auto-detection of wrong polarity of solar panel and battery battery voltage indicated on LCD display handles up to 30 A (300 W) input current: max. 30 A load current : max. 30 A input voltage: max. 28 V over-charge protection: 14.5 V ± 0.4 V over-discharge protection: 10.7 V ± 0.4 V output voltage: 12 VDC no-load current: voltage loss charging circuit: 13.3 V ± 0.4 V voltage loss discharging circuit: 12 V ± 0.4 V operating temperature: -25°C - +40°C dimensions: 160 x 95 x 40 mm weight: ± 350 g (EN)