Maximize battery life with efficient and controlled charging. The Go Power! PWM Solar Charge Controller accepts up to 190 watts of solar power. This 10-amp flush-mounted controller regulates current flow from the solar panels to the battery, prevents overcharging, and optimizes battery lifespan.• Pulse Width Modulation (PWM) Charging• Flush-mounted for a finished installation• 4 battery charging profiles: Gel, AGM, Flooded, and Lithium• 4-stage charging: Bulk, Float, Absorption, and Equalize• Monthly equalize option• LCD display shows Charging Current and Battery Voltage• LED indicator shows Battery State of Charge• Reverse polarity protected• Accepts up to 190 watts of solar power at 12 volts• Built-in USB charge port• Mfr. 5-year warrantySpecificationsNominal System Voltage: 12VMax Solar Array Current: 10ABattery Voltage Range: 6V - 15.5VMax. Solar Panel Input Voltage: 28VOperating Consumption: 6mADisplay Consumption: 10mAOperating Temperature: -40°F to 185°FDimensions: 5.87"H x 3.86"W x 1.26"DWeight: 9.2 oz. Maximum Wire Gauge: #4 AWGProtection: Battery Reverse Polarity, Solar Array ReversePolarity, Over Temperature, Over Current 4-stage charging with Bulk, Float, Absorption, & Equalize LCD display shows Charging Current & Battery Voltage Built-in USB charge port | Go Power 12V 10A Flush-Mounted Solar Charge Controller