


Helping finding what these parts are
Image 1: is the first thing that went out. Just a blank. Do I use a multimeter on the other one to measure it? But I also don’t know the name of it.
Image 2/3: Barely noticeable but it’s a SMD 4380 resistor that I can only find on alibaba and surprisingly not eBay. Is this for sure before I buy?
Also what kind of battery should I use to test this once it isn’t fixed? I used my drill battery and it was fine when I first got my tail lights but fast forward a year I did it again and blue the first one.
I desoldered it and put it back on just to keep testing the wires cause I forgot what did what and I need up blowing the 4380s the go on the LED strips.
Please I would really love some help with this. I’m not super into electronics like this. You can say I’m like one of the “mechanics” who doesn’t know how to diagnose a car and just knows how to sketch out parts. The most I do is solder wire or first project was replace my joysticks on a controller.