Need Help with RetroFit Light System

Purchased the truck (1 owner truck) used and the PO had installed a Retrofit light system/kit.

initially they worked fine (high and low beams) then the passenger headlight was kind of slow in igniting/coming on - but now the passenger side light doesn't come on, I have looked at the wires plugged and unplugged turn off then on etc. but nothing?

I know nothing of these systems so any and all help would be appreciated. in trouble shooting and or what to purchase to fix before I go back to stock system.

here are some pics of what is installed - I don't know even where to begin

 

So here is what you need to do. Start by swapping components from one side to the other to find out what is faulty. Ballast first, bulbs, igniters. Turn the lights on each time until the problem ends up on the opposite side. If the component with the issue is not discovered or swapping does not do it, it is probably a loose connection issue. I have had 2 connection issues both at the Female male connector just going slightly bad on my passenger light since 2016. They typically begin as an intermittent issue or the lights will flicker when I hit a bump. Best of luck DM me if you need help

 

Thanks Johnny! I will follow your instructions and DM if I run into questions - Appreciate the help

 

No problem! Whoever did that retrofit did a very very clean install! Should be easy to troubleshoot

 

I agree the whole truck is an awesome build. The PO did a great job