1、Features with short circuit protection, over‑current protection, overcharge and overdischarge protection, store electrical energy function. 2、Widely used in solar street lights, solar monitoring, solar Internet of things, solar lights, irrigation systems, intelligent systems etc. 3、Small in size and light in weight, good waterproof heat dissipation performance, high charging efficiency. 4、Built to meet standard specification, strictly follow factory quality control. 5、This product has the characteristics of low power consumption, stable charge and discharge, easy installation and maintenance. 1 x Controller2 x Connecting Line1 x Bag of Screw(12pcs)1 x Instruction Manual Condition: 100% Brand NewItem Type: ControllerMaterial: AluminumColor: As shown in the pictureBattery Properties/Capacity: 18650 lithium battery 12V 4000MAH-200000MAH(Included)Solar Peak Input Voltage: 30V, 50VLoad Voltage Range: 9.6- 12.6V, 10.0 - 14.6 VStatic Power Consumption: <20mAService Life: 5-7 yearsOperating Temperature: -10℃-60℃Storage Temperature: -40℃-85℃Waterproof Rating: IP67Widely Used in: Solar street lights, solar monitoring, solar IoT, solar signal lights, irrigation systems, intelligent systems, etc., suitable for solar power supply systems. But your device must be 12V. The output voltage of this machine is the battery voltage. If it is not within this voltage range, it cannot work. Operate strictly in accordance with the instructions!Weight: Approx.1560g/55oz