Nannday Solar Charge ControllerPWM Smart Dual USB Solar Panel Charge Controller Intelligent Regulator with LCD Display 12V 24V 20A

Specification: Batt voltage: 12V/24V auto Charge current: 30A Discharge current: 10A Max solar input: 23V Overvoltage protection: 16.5V Equalization: 14.4V Float charge: 13.8V (default, adjustable) Discharge stop: 11.0V (default, adjustable) Discharge reconnect: 12.6V (default, adjustable) Charge reconnect: 13V Voltage of open light: Solar panel 8V (Light on delay) Voltage of close light: Solar panel 8V (Light off delay) Terminal scale: 28-10 AWG Self-consume: <12 mA USB output: 5V/2A Operating temperature: -35~60? Size: 188*93*42mm / 7.4*3.7*1.6in Weight: Approx. 323g / 11.4oz Tips: All red voltage is only for 12V system, please double it while using 24V system. Package list: 1 * Solar Charge Controller 1 * User Manual Note: 1. The regulator is only suitable for lead-acid batteries: OPEN, AGM, GEL. Not suitable for NiMH, Li-ion or other batteries. 2. Make sure your battery has enough voltage for the controller to recognize the battery type before first installation. 3. The battery cable should be as short as possible to minimize loss. 4. The charge controller is only suitable for regulating solar modules. Never connect another charging source to it.