BK series, the light source adopts imported 3030 lamp beads, with a large lighting angle and a wide irradiation area; it is equipped with an infrared sensor head, which also has optical sensing, automatically charges during the day, and automatically lights up at night lamp. The product is equipped with an adjustable base that can be adjusted from 0 to 72°, making it suitable for a variety of installation environments. The solar panels use high-efficiency imported polycrystalline silicon wafers, and the surface is treated with special processes to greatly improve improve charging efficiency.