... voltage;3) power charging current, 10A------50A, ( optional );4) controller includes protection against short-circuit;over -heating ; over-voltage;below ... -voltage5) controller special for wind power and solar power6) controller modifies the direction of wind turbine; ... panels8) with RS232, USB (optional )9) with different DC , such as 12V,24V,36V,48V,72V,96V,110V,192V ...