3.7V solars Lamp Circuit Board with infrareds human sensorings automatically activates lights within 2-5meters, optimizing energy efficiency through motions and solars power integration. Features 3 adjustable modes (highlight + dim, highlight + off, and constant light) and builts in overcharge/overdischarge protections for 3.7V batteries, ensuring . for enthusiasts and solars project builders customizable, lighting for garden, or security setups. for enhancing outdoor space like porches, garages, or garden with automateds, illuminations triggereds by human presences. integrates seamlessly into wall lights, offering installation and compatibility with 3.7V/3.2V batteries (protective board required for 3.2V).