Features 1、MPPT boost charging, breeze low voltage can start, sufficient energy, can solve the problem of slow fan speed can not be charged. 2、Compared with the traditional PWM charging controller, it greatly improves the charging capacity and the utilization efficiency of the power generation system. 3、IP67 protection grade, this controller is dust-proof, waterproof, oxidation-resistant, durable and wear-resistant. 4、Heat conductive silicone is used for filling and sealing, which is waterproof, dust proof and circuit oxidation proof. 5、With perfect overcharge protection, reverse connection protection, short circuit protection, high temperature protection and other functions, it is more safe and convenient to use. Specifications Condition: 100% Brand New Item Type: Wind Charge Controller Material: Aluminum Alloy Protection Grade: IP67 Static Power: ≤15mA Fan Input Power: 48V ≤ 800W Working Temperature: -35 °C -70 °C Applicable Battery: Lead Acid/Gel Battery Weight: Approx. 274g / 9.7oz Size: Approx. 9.3x8.4x2cm / 3.7x3.3x0.8in LED Indicator Indicating Content Status Function Green Fan Charging Indication Off 1: Wind not connect, 2: No wind On Wind charging Red Fan Brake Indication Off Controller working On Package List 1 x Wind Charge Controller 1 x Instruction Manual