Feature:1. LCD screen for dynamic display of equipment running data and working status.2. 3-stage PWM charging control features quick charging, lifting/balancing, floating charging.3. Dual USB interface design allows to charge electronic equipments with DC power.4. Various load control modes: Manual Mode, Optical Control Mode, Dual-Period Mode And Debugging Mode.5. In the working environment temperature range (25~55), can run continuously and full load with rated charge current.6. Sealed design, charging programs of 3 battery types are selectable.7. Humanized button setup, more comfortable and convenient to operate.8. With real-time electricity statistics recording function.9. With battery temperature compensation function.10. All round electronic protection function.11. The wiring terminals are certified by UL and VDE, making the product safer and more reliable.Specification:Item Type: Solar Charge ControllerModel: VS1024AU, VS2024AU, VS3024AU (Optional)System Voltage: 12V/24V Auto IdentificationRated Charging & Discharging Current: VS1024AU: 10A, 55 ; VS2024AU: 20A, 55 ; VS3024AU: 30A, 55 Battery Type: Lead-Acid Maintenance-Free (Default), Gel, Lead-Acid Liquid Battery Voltage Range: 9V~32V@font-face{font-family:"Times New Roman";}@font-face{font-family:"";}@font-face{font-family:"Meiryo UI";}p.MsoNormal{mso-style-name:;mso-style-parent:"";margin:0pt;margin-bottom:.0001pt;mso-layout-grid-align:none;layout-grid-mode:char;line-height:16.0000pt;mso-line-height-rule:exactly;font-family:'Meiryo UI';font-size:10.5000pt;mso-font-kerning:1.0000pt;}p.MsoFooter{mso-style-name:;mso-style-noshow:yes;margin:0pt;margin-bottom:.0001pt;mso-layout-grid-align:none;layout-grid-mode:char;text-align:left;line-height:16.0000pt;mso-line-height-rule:exactly;font-family:'Meiryo UI';font-size:9.0000pt;mso-font-kerning:1.0000pt;}p.MsoHeader{mso-style-name:;mso-style-noshow:yes;margin:0pt;margin-bottom:.0001pt;border-top:none;mso-border-top-alt:none;border-right:none;mso-border-right-alt:none;border-bottom:none;mso-border-bottom-alt:none;border-left:none;mso-border-left-alt:none;padding:1pt 4pt 1pt 4pt ;mso-layout-grid-align:none;layout-grid-mode:char;text-align:justify;text-justify:inter-ideograph;font-family:'Meiryo UI';font-size:9.0000pt;mso-font-kerning:1.0000pt;}span.msoIns{mso-style-type:export-only;mso-style-name:"";text-decoration:underline;text-underline:single;color:blue;}span.msoDel{mso-style-type:export-only;mso-style-name:"";text-decoration:line-through;color:red;}@page{mso-page-border-surround-header:no;mso-page-border-surround-footer:no;}@page Section0{}div.Section0{page:Section0;}Maximum PV Open Circuit Voltage: 50VProtection Function:Photovoltaic Array Reverse Polarity ProtectionBattery Overdischarge ProtectionLoad Short Circuit ProtectionBattery Reverse Polarity ProtectionBattery Overtemperature ProtectionTemperature Sensor Damage ProtectionBattery Overvoltage ProtectionLoad Overload Protection@font-face{font-family:"Times New Roman";}@font-face{font-family:"";}@font-face{font-family:"Meiryo UI";}p.MsoNormal{mso-style-name:;mso-style-parent:"";margin:0pt;margin-bottom:.0001pt;mso-layout-grid-align:none;layout-grid-mode:char;line-height:16.0000pt;mso-line-height-rule:exactly;font-family:'Meiryo UI';font-size:10.5000pt;mso-font-kerning:1.0000pt;}p.MsoFooter{mso-style-name:;mso-style-noshow:yes;margin:0pt;margin-bottom:.0001pt;mso-layout-grid-align:none;layout-grid-mode:char;text-align:left;line-height:16.0000pt;mso-line-height-rule:exactly;font-family:'Meiryo UI';font-size:9.0000pt;mso-font-kerning:1.0000pt;}p.MsoHeader{mso-style-name:;mso-style-noshow:yes;margin:0pt;margin-bottom:.0001pt;border-top:none;mso-border-top-alt:none;border-right:none;mso-border-right-alt:none;border-bottom:none;mso-border-bottom-alt:none;border-left:none;mso-border-left-alt:none;padding:1pt 4pt 1pt 4pt ;mso-layout-grid-align:none;layout-grid-mode:char;text-align:justify;text-justify:inter-ideograph;font-family:'Meiryo UI';font-size:9.0000pt;mso-font-kerning:1.0000pt;}span.msoIns{mso-style-type:export-only;mso-style-name:"";text-decoration:underline;text-underline:single;color:blue;}span.msoDel{mso-style-type:export-only;mso-style-name:"";text-decoration:line-through;color:red;}@page{mso-page-border-surround-header:no;mso-page-border-surround-footer:no;}@page Section0{}div.Section0{page:Section0;}Controller Overtemperature Protection.