1.Widely used, automatic recognize day or night. 2.Several load methods are supported to convenient for different demand. 3.Lock the MP point fast and the controller provides the industry's highest tracking efficiency of 99%. 4.Excellent heat dissipation. Using the integration of cast aluminum radiator shell, the controller can be natural cooling. 5.Advanced maximum power point tracking technology to optimize using the solar system. Peak conversion efficiency is as high as 98%. Welcome and I wish you a happy life, my friend., Manufacturer: MJFVN