ECO-WORTHY 24 Volts 720 Watts Wind Solar Power: 1pc 12V/24V 400W Wind Turbine Generator + 2pcs 12V 160W Monocrystalline Solar Panel + 24cm Cable with MC4 Connector The maximum discharging current of controller is 20a, so you should connect the solar panels in series to be 24v system. If you wanna use 12v system, you need to connect with only one solar panel. 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. This system doesn't come with a pole, we suggest you buy one in local place. Height of tower/pole: 4.5m-10m, pole diameter: 7.4cm - out diameter, 5.3cm - inner diameter. The type of hybrid controller is PWM, it's designed with over-load protection and short circuit protection functions. High efficient and compact alternator with high performance NdFeB permanent magnet. Fully integrated regulator that automatically shuts down when the batteries are completely charged.