What is this box/circuit board under tail lights? (Pictures)
 

Found nice looking LED tail lights and was installing them, but noticed a little black box on the bottom.
Unscrewed the box and there's some circuit board inside with a bunch of resistors maybe?
Just wondering what it is and if it's replaceable, i.e. if I can buy this part separately.
So far tail light seem to work and turn signal as well, but it doesn't light up when I apply the break. Not sure if this is the reason.
https://i.ibb.co/qC3yz5t/20220624-214846.jpg https://i.ibb.co/VHcpyKC/20220624-214837.jpg https://i.ibb.co/BGd7b0P/20220624-214831.jpg

seems like a bunch of resistors to tell the car the lights are working fine, they of course get hot so they should not be in a plastic box....

I'm wondering if I can just wire in a resistor instead of these. Just not sure the value...
I can probably code out the errors in ncs expert. Only issue right now is they don't light up with brakes applied. I'll try the other tail light for testing purposes.

Those resistors looked toast - literally! Seem undersized for the amount of power going through them. A fire hazard waiting to happen - JMHO!

i can't see pictures... I'm wondering if its a browser issue, or so you all not see pics either?

Pictures are coming through fine with Chrome

I can probably just wire in another resistor in there but what size?
Will these work?
https://i.ibb.co/Wy4N0BB/Screenshot-...n-Shopping.jpg

I've got one like this. Tried putting it in there, but it gets crazy hot. Not sure if it's normal or not