Does the subject want to ask, "What is the coupling light power of led white fiber? 1~5mw. Power refers to the work done by an object in unit time, that is, power is a physical quantity describing the working speed, and the coupled light power of led white light fiber is 1~5mw. Optical fiber coupler, also known as optical fiber flange, is used to accurately butt the two end faces of optical fiber jumper to extend the optical fiber line.