ITEM NAME:30W Dual USB Flexible Solar Panel Kit+30A Controller+Clip Outdoor Car Charg S2T8 30W Dual USB Flexible Solar Panel Kit+30A Controller+Clip Outdoor Car Charg S2T8 1.Build-in industrial Micro-controller. 2.Fully 4-stage PWM charge management. 3.One-key setting,digital display, auto memory function. 4.Dual mosfet Reverse current protections, low heat productions. 5.Build-in short-circuit protections, open-circuit protections, reverse protections, over-load protections. Current:30A Model: PWM color: blue Material: Polysilicon Buck charge: 28.8V Float charge: 27.4V USB output: 5V/3A Self-consume: Less than 10mA Discharge stop: 21.4V Voltage: DC 12V/24V Max solar input: Less than 50V Rated working current: ≤20A Discharge reconnect: 25.2V Working temperature: -35℃~60℃ Output voltage: 12V/24V Automatically distinguish voltage Safety Instructions: 1.Make sure your battery has enough voltage for the controller to recognize the battery type before first installation. 2.The battery cable should be as short as possible to minimize loss. 3.The regulator is only suitable for lead acid batteries: OPEN, AGM, GEL(It is not suited for nickel metal hydride, lithium ions or other batteries). 4.The charge regulator is only suitable for regulating solar modules. Never connect another charging source to the charge regulator. Package: 1X 30W Solar Panel Kit 4X suction cup 1 pair Crocodile clip 1x Car charger 1X Solar Controller