Charge Indicator:Fast charging red light long and blue light flash alternately charged,full auomatic stop.MPPT Function:MPPT max. point automatic tracking,to maximize the full use of solar charging.Charging: Automatic intelligent three-stage charging mode. Self-tracking solar automatically adjust the size of the charge current.Input reverse polarity protection and reflux output protection.Wiring:TerminalsInput Voltage:DC 8-28V (Prohibit AC input)Output Voltage:DC5-26V steplessOutput Current:5ASuitable for:6V or 12V battery,8.4V,12.6V,16.8V lithium battery,7.2V,10.8V,14.4V lithium iron phosphate charge management boardLow Pressure:1VWorking Temperature:-40- +85 Degrees CelsiusLoad Regulation:+/- 1%Voltage Regulation:+/- 0.5%Conversion Efficiency: Max:93% :95%No-load Current:3mAMPPT Voltage:AdjustableMaterial:CCLSize:Approx.1.5'X0.7'X1.97 inch/4X2X5cmcolour:redPackage Includes:1 x Solar Panel ModuleNote: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Products from GuanGuan's store