CMG-2420 20A 12V 24V Solar Panel Charge Controller Automatic Switch Total Size: 133 x 70 x 30mm/5.2" x 2.8" x 1.2"(L*W*H); Mounted Hole Dia: 4mm/0.16"; Mounted Hole Center Distance: 12.5 x 5cm/5" x 2"(L*W); Rated Charge Current: 20A Rated Discharge Current: 20A; USB Output Voltage: 5V 2A; Max. Solar Panel Input Voltage: &lt;=50V; Stop Charge Voltage: 14.7V/29.4V Low Voltage Recovery: 12.2V/24.4V; Low Voltage Protection: 10.5V/21.0V; Voltage: 12V/24V Auto Work; Country of Manufacture: CHINA Material: Metal, Plastic; Net Weight: 188g; Package Content: 1 x Solar Charge Controller Model: CMTD-2420; No Load Loss: &lt;=10mA; Working Temperature: -20 Degree - +60 Degree