Usage Tips:30A SOLAR CHARGE CONTRALLER: Solar Charge controller compatibility with 12V and 24V system, Discharge Current: 30A; dual USB output 5V / 2.5A, -in industrial microcontroller for automatical management, memorizing parameters set by the and the data 't be lost when the battery runs out, suitable for lead-acid batteries: , , GEL. LCD Display: the operation of the solar controller high definition display system is clear at a , and the display timing correspond to the LCD display one by one, which is clear and intuitive; At the same time, one button operation can complete the setting FUNCTIONAL LCD SCREEN: Easy to install and operate, Intuitive LCD display that can clearly indicate the status and data is to switch modes and parameter configuration, The level of complete power-off is adjustable, which can perfectly protect the lithium battery from over-discharge, suitable , industrial, commercial etc. 30A Solar Charge Controller: this solar battery controller regulator is equipped with industrial grade main control chip, with full 3 level PWM charge management, dual MOS anti backflow circuit, ultra low heat generation, improved system efficiency Widely Applied: outdoor solar controller with dual USB ports is compatible with 12V/ 24V ; The 5V/2A USB port supports mobile phone charging or any other 5 voltage devices, which can protect the lithium battery from overcharge and discharge, suitable , industry, business and so on color:As shown Material:plastic Package Contents: 2 x Outdoor solar control Only the above package content, other products are not included. Note: Light reflection 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.