ECO-WORTHY 400 Watt Wind Turbine Generator with 12V/24V 20A Hybird Charge Controller for Charging 12 or 24 Volt Battery 400 watt 12v/24v wind power system uses wind to generate power and run your appliances. It can be used in conjunction with solar panels. Controller connection: 3x green line for wind turbine, red is the positive for all connections, blue is the negative for solar panel, black is the negative for battery, yellow is the negative for load. High performance nylon fibre blades by precision molding injection. It's designed for both land and marine. High efficient and compact alternator with high performance NdFeB permanent magnet. Fully integrated regulator that automatically shuts down when the batteries are completely charged. Wind turbine includes generator, 3 blades, tail and hardware. Specified materials for corrosion resistance to sea and salt water. Built in automatic and manual breaking system to protect from sudden and high wind speed. As the hybrid controller is 12V/24V autodetect,please connect it to the battery firstly, then connect the wind turbine, solar panel &amp; 12V (24V) appliances with the controller. Controller connection: Red wire is the Positive for all connection; Black wire connect with Battery Negative; Green wire connect with Wind Turbine; Blue wire connect with Solar Negative; Yellow wire connect with 12V (24V) appliances&#039; Negative. Includes 3-Blades Wind Turbine with 20A Hybrid Controller To make this system complete, you need to get some electric cables (14awg suggested) to connect the wind turbine, solar panel &amp; 12V (24V) appliances with the controller, and you would need a battery to store power to run your appliances freely. Also this kit doesn&#039;t come with a pole, we suggest you buy one in your local place. Height of tower/pole: 4.5m-10m, pole diameter: 7.4cm - out diameter, 5.3cm - inner diameter.