Features 1REAL TIME TRACKING FUNCTION: MPPT type is suitable for solar panels of different voltages, with high efficiency MPPT real time tracking 2HIGH CONVERSION EFFICIENCY: High efficiency synchronous rectifier circuit structure is adopted, which has high conversion efficiency in low power charging environment 3VOLTAGE ADJUSTABLE AND WATERPROOF: Output voltage is adjustable, support acid and lithium batteries, etc. Waterproof, dustproof, shockproof 4MULTIPLE PROTECTIONS: Voltage and current LED display, efficiency is more than or equal to 95%, with short circuit protection, over temperature protection, and under voltage protection 5WIDE RANGE OF USES: Suitable for solar street light controllers, solar chargers, solar electric bicycle, solar electric tricycles, solar toy cars, household solar panels, solar monitoring and other usage scenarios Specifications Item Type: Solar Battery Charge Controller Product Size: Approx. 120 x 80 x 40mm / 4.72 x 3.15 x 1.57in Efficiency: 95% Noise: