With current meter how to detect the led lamp lights, bad
Can find a lithium battery (or 3 section dry cell in series), series a hundreds of the resistance, to the led lamp bead, try on the reverse, if the light is good, light is not bad
Ammeter is used to inspect the led lamp lights, good or bad, don't bother
Connect the battery, Ed to shoot the light, current meter, in turn, measure current value, and then put Ed lamp switch poles of the measured current value, two more obvious change is Ed to shoot the light is good, no change is bad.
