led perforation point source LED quantity: 1PCS Operating voltage: DC5V led pierce point operating power source: 0.3W Dimensions: 20 * 79MM led hole diameter perforation point source: 20MM IP rating: IP66 led perforation point source operating temperature : -40--70 ℃ ---- 2MM colors: red, yellow, blue, green and white is white warm white colorful full color led perforation point source is ideal for particle rays of light in all directions. Point sources are abstract concepts of physics, in order to simplify the study of physical problems. Like usually say the smooth plane, particle, as no air resistance, led pierce point light source is in reality does not exist, is the time from a point of the surrounding space uniformly emitting light source.