How to check if a LED flashlight is working ??I I am a beginner!!?

Saturn V7 years ago
I'll make this as easy as I can.
Step 1: Put in the batteries (AA, AAA, C, D, or whatever it requires)
Step 2: Make sure they are in the right way
Step 3: Push the button
That wasn't so hard, was it?
Turn the switch on. If light comes out, you're good to go.
use a multimeter ? look at the led