(Versatile DC-DC Buck-Boost Converter)It adopts premium quality electronic components and waterproof (IP68) flame-retardant ABS housing. Widely used for golf cart, club car, motor, speaker, GPS, car display screen, LED strip light, air-conditioner, electric fan, solar energy, DVD and other devices that requires DC 12V voltage. (Input Voltage) DC 8V to 36V. A stable DC power is recommended as the input power supply, and the rated voltage supply should be within the voltage range of 8V to 36V. (Output Voltage)DC 12V (Output Current: 1A / 2A / 3A / 4A). Please NOTE the output voltage/current/power is rated. (Multiple Protections)Built-in over-temperature, over-current, over-voltage, output short- circuit protection to ensure your devices safely. (Easy to DIY)Connect INPUT wires to power source, OUTPUT wires to your load device. The wiring diagram is labeled on the back of buck-boost. Please don't power on before completing the circuit and