Features:*High-Quality Material: Made of high-quality material, wear-resistant, not easy to break, durable and can be used for a long time.*Easy to Use: One-click setting, automatic memory function. Digital display, built-in industrial microcontroller, more convenient to use.*Safe to Use: 4-level PWM charging management, built-in short circuit protection, open circuit protection, reverse connection protection, overload protection, reverse current protection, low heat generation, safe to use.*Wide range of applications: can be used in solars power generation systems, smart homes, solar chargers, solar ventilation systems, solar light boxes, solar billboards, solar warnings lights, etc.*Durable: With dual USB port charging, this voltage regulator is only suitable for lead-acid batteries: OPEN, AGM-battery, GELNotice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurementDescription:Material: PVCSize: 13.3*7*3.5cmStandby current: <10mAWorking temperature: -35 to 60System voltage: 12V/24V automatic identificationRated charging current: 10A/20A/30ARated discharge current: 10AMaximum photovoltaic voltage: 12V system23V/24V system46VFloat voltage: 13.7 (default value, adjustables range: 12.7V-15V)Discharge cut-off voltage: 10.7V (default value, adjustablesrange: 9V-11.3V)Discharge recovery voltage: 12.6V (default value, adjustablesrange: 11.5V-13V)USB output: 2 USB outputs, maximum 5V/2A