What is the rated power and rated voltage of an LED bulb on an ordinary LED flashlight?
. Because the parallel series, cause partial pressure, so the general flashlight is composed of a plurality of LED beads + reflection cover to improve brightness in parallel.
The use of LED light condition is affected by the LED chip decision, because the chip work requirements is a constant current, so the general lighting equipment in the design of limited flow unit, voltage requirements can be achieved as long as the threshold voltage can.
So what you installed according to the voltage of several batteries can be judged out of the ordinary small size chip current limit is generally 20mA, but a LED lamp in the packaging when not only on a chip, sometimes in order to improve the brightness will also put a few stars, so the current single LED lamp to see use the beads package a few chips to judge!