1. Advanced MPPT maximum power point technology, the maximum efficiency is 98%, which can save the energy of the battery board and reduce the cost of the battery board.2. High-quality components are used to improve system performance, and the maximum conversion efficiency is 97%. 3. Ultra-fast maximum power point speed, while ensuring efficiency.4. The 4-digit digital tube of this machine has the functions of real-time display of battery board voltage, charging current, battery voltage, etc., which is convenient and clear to display the charging status. And this product allows customers to freely set the battery voltage and charging parameters.5. The operating voltage range of the maximum power point of the wide photovoltaic array is 12V-50V. 6. Adopt the direct display design of each parameter, dynamically display the operating data and working status of the equipment, battery board voltage, charging current, battery voltage, etc.7. With the technology of taking power from solar panels, the standby power consumption is 0, and the power consumption of the system is all from the panels, and it does not work at night. 8. This product supports customers to manually arbitrarily set the battery voltage and charging parameters through the button, and is applicable to various battery types, such as lithium batteries, iron-lithium batteries, nickel-metal hydride batteries, lead-acid batteries, gel batteries and other various types Battery.9. There is a child lock function to prevent charging errors caused by accidentally touching the buttons. 10. Connect the battery first, and the end with the fuse is connected to the battery. Pay attention to the positive and negative poles, do not reverse the connection, otherwise the fuse will be burned. 24/36/48/60/72V MPPT Battery Charging Voltage Regulator Solar Charge Controller With Anti-reverse Connection Protection Features: MPPT high-efficiency charging method, the charging efficiency is 97%. The overcharge protection function effectively protects the battery from overcharging. Anti-reverse connection protection, both the battery and battery board have anti-reverse connection protection. Short circuit protection, with child lock, safe and convenient. It can be applied to all kinds of batteries, the battery board takes power, and the standby power consumption is 0. Battery Voltage Range: 24v/36v/48v/60v/72v (18v Battery Board) 48v/60v/72v (36v Battery Board) Maximum Charging Current: 16.7A Maximum Solar Panel Power: 300w Solar Panel Input Voltage: 12v~50v (the Voltage of the Solar Panel Needs to Be Lower Than the Battery Voltage) The Highest Charging Voltage (that Is, Overvoltage Protection): 28.8v(24v), 43.2v(36v), 57.6v(48v), 72.0(60v), 86.4v(72v), Can Be Set by Yourself Mppt Voltage Range: 12v-50v Maximum Conversion Efficiency: 97% Load Loss: 25ma (18v Battery Board to Charge 24v Battery) 20ma (36v Battery Board to Charge 48v Battery) Mppt Efficiency: 98% Working Temperature: -35-65 Protection Level: IP30 Colour:black Material:Metal Package Contents: 1 x Solar Charge Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.