Feature: Made of quality materials, lightweight, high efficient, durable with long lifespan. Photovoltaic type design, can quickly store the electricity power generated by solar panel to storage battery. Features short-circuit protection, overload protection, overcharge and over-discharge protection, low-voltage protection, anti-reverse charge, anti-reverse connection protection, reliable and safe to use. It can offer reasonable power supply allocation to various devices, compatible with many solar panels, battery, devices. Widely applicable to many uses, garden, yard, path, etc. Spec:Material: PSColor: BlackSystem Voltage: DC12VSelf-consuming: 10MARated Charge Current: 10ARated Load Current: 10AOvercharge Protection: 14.4V/28.8VOverdischarge Protection: 10.8V/21.6VLoad over-voltage Protection: 16.5V/34VMaximum Open Circuit Voltage for Solar Cell: 25V/36VWorking Temperature: -20℃ - 50℃Size: Approx. 10.2 * 9.5 * 3.7cm / 4.01 * 3.74 * 1.45inchWeight: Approx. 142gPackage List:1 x Controller1 x ManualInstruction:1. Open the cover of controller, install the controller according to the manual.2. Connect the battery's positive and negative electrodes to the 3rd and 4th terminals from left of the controller. *If the led indicator (LOAD) turns on, which means this step is right, and keep on3. Connect the solar panel's positive and negative electrodes to the 1st and 2nd terminals from left of the controller.4. Connect the device's positive and negative electrodes to the 5th and 6th terminals from left of the controller.* Charging indicator on, means it's in charge, flashing means in floa