Solar Charge Controller:The solar charger controller compatibility with 12V 24V system. Discharge Current is 30A, build-in industrial micro-controller, automatically manage the working of solar panel and battery in solar system. Dual USB , to support mobile phone chargeing. 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 for home, industrial, commercial etc. Safety Charging:Adopt flame-retardant shell, fireproof, , resistant, solid and , Built in circuit protection guards against reverse polarity, , overcharging, over-current, open-circuits, short-circuits and overheating. Smart LCD display shows the charging status and battery status to make you more of charging Battery Type:For protecting the lifespan of your battery, once the voltage of the battery out of range, the solar controller will turn off automatically. color:As shown Material:plastic Package Contents: 1 x Solar Charge Controller 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.