LED starting current

LED are not like energy-saving lamps. It is starting when there is no high voltage. The led operation current is not that high(in general the scale is 10mA~50mA). but many users find that the led would carry more bigger at starting instant. That’s way?

This phenomenon is due to the capacitance . in general there are have filter capacitance in led circuit . the specific place that it stood hard by rectifier circuit. Work process is : the filter capacitance will process of charging process when led string instant. But this is so short time. The charging current is big if the relatively lower resistance(can reached 1~2A)。but this effect is so small for LED circuit. In conclusion , the current canThe starting current be used as Rated current, The calculating formula of Rated current as: power/voltage , for example 30W/220V/0.136A(amp)