Industrial meter system solutions are widely used in the lighting of urban and rural roads, expressways, water conservancy dikes, bridges, islands, parks, industrial areas, city squares, residential areas, parking lots, and other places. The system is mainly composed of photovoltaic modules, MPPT solar street light controllers, batteries and LED lamps. The MPPT charging system solution for solar street lamps is a solution to outdoor lighting problems using MPPT charging. The MPPT tracking efficiency can reach 99.9%, which significantly improves the energy utilization efficiency of the photovoltaic system, which is about 15%~20% higher than the traditional PWM charging efficiency, and solves the problem of energy waste caused by the low charging efficiency of traditional controllers. Using advanced digital power supply technology, the circuit energy conversion efficiency is as high as 96%. Using the matching remote controller SR-CU-ALL, adopting external line transmission technology, you can directly debug various parameters in the solar street light controller, which is convenient and quick.