Q: how does the working current of LED street lamp power supply design a: LED street lamp power calculation formula is: LED street lamp working current Ⅰ = Ur/R. The parameters of the led street light components of aging, droop, and use has great influence on reliability, must according to the
q: how to design the working current of led street lamp power supply answer: led street lamp power calculation formula is: led street lamp working current I = ur/r. The parameters of the LED street lamp component aging has a great influence, light attenuation and the use of reliability. Must be based on the led street lamp, allowable junction temperature of the component work ring, the manufacturer of led light pole parameters such as environment, components of PN junction integrated computation, as much as possible to reduce fever, more electric energy into visible light energy. Commonly used 8 - 15 mil chip generally has 20 ma rated current, which can be taken as reference to the general design.