The lights in LED lights often have PAR16, PAR30 and AR111. How do they differ
16, 30, 11 these Numbers are just the size of a lamp. You can distinguish it directly from your eyes
It could be incandescent, halogen lamps, gold halogen lamps or leds. AR111 is the one we used to call the cow-gall lamp, one of the halogen lamps, the built-in aluminum reflection cup and the glare shield,
PAR16, PAR30, and PAR38 are all light bulbs with reflective cups or reflective systems. The digital represents the diameter of an inch.