A couple years ago at the Red Rock rally (before I was comfortable doing my own mods), I had a vendor install additional lighting at the rear, including replacing the saddlebag lid reflector with an LED light. Recently I noticed the one on the left had stopped working, so pulled apart the back end to get at the wiring.
What I was able to determine is that there is power up to this cylindrical device and no further. Can anyone tell me what it is (I'm guessing a capacitor or resistor), how important it is (can I bypass it safely?) and where to get a replacement, if necessary? Thanks.

What I was able to determine is that there is power up to this cylindrical device and no further. Can anyone tell me what it is (I'm guessing a capacitor or resistor), how important it is (can I bypass it safely?) and where to get a replacement, if necessary? Thanks.
