Concentrating flashlight refers to light that is concentrated by using a condenser lens or a mirror, such as PT02, P5, etc., the spotlight of the spotlight is bright, the brightness outside the center spot is low, and the spotlight is projected with a clear boundary. The beam of light illuminates a specific area. The center spot is small and strong, and the long-range effect is very good. Usually, the mirror (glossy) reflector is used with the small core LED. The diameter and depth (height) of the reflector directly affect the concentration. The degree, the curve design of the reflector determines the position of the beam convergence and the shape of the spot.