Package Includes： 1 X Solar Charger Controller. 1 X Manual. Specifications: Material: ABS. Color: Black+White. Display: LCD screen. Batt Voltage: 12V/24V. Rated Current: 10A, 20A, 30A. Self-consumption: ＜10MA. Working temperature: -35 ℃ -60 ℃. Float charge: 13.7V(defaul, adjustable). Discharge stop: 10.7V(defaul, adjustable). Discharge reconnect: 12.6V(defaul, adjustable). Charge reconnect: 13V. Voltage of open light: solar panel 8V(Light lights delay). Voltage of close light: Solar panel 8V(Light off delay). USB output: 2 way USB output, 5V/2.5A(MAX). Size: (L)X(W)X(H)133.5X70X35mm /5.26''X2.76''X1.38''(appr.). 【Features】 ✔ Build-in industrial micro controller. ✔ Big LCD display, all adjustable parameter. ✔ Dual mosfet reverse current protection, low heat production. ✔ Dual USB output, the maximum current of 2.5A. ✔ Build-in short-circuit protection, open-circuit protection, reverse protection, over-load protection. ✔ Suitable for solar green light, solar light boxes advertising board, solar insecticidal lights, housing solar power generation system, marine solar power generation system, outdoor survival solar power generation system. 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 suitable for all batteries. 4.The charge regulator is only suitable for regulating solar modules. Never connect another charging source to the charge regulator. SYSTEM CONNECTION: 1.Connect the battery to the charge regulator-plus and minus. 2.Connect the photovoltaic module to the regulator-plus and minus. 3.Connect the consumer to the regulator-plus and minus. The reverse order applies when deinstalling. An improper order can damage the controller. Notice: 1.Please allow 1-2cm error due to manual measurement.Please make sure you do not mind before you bid. 2.The colors may have different as the difference display,please understand