This is that retrofit thread we talked about!
Had a ballast failure. I just recently developed the same "flicker on for a few miliseconds then shut off" problem I've been having with my driver's side ballast because one pin on the bulb was broken and I thought it wasn't getting a good connection. I replaced the bulb that has 2 perfectly good studs and it was fine until last night. A perfectly good connection and the flicker for a few milliseconds issue happens again. So I switched the driver's side ballast with the passenger's side headlight and it still didn't work. This leads me to think the driver's side ballast failed?
Had a ballast failure. I just recently developed the same "flicker on for a few miliseconds then shut off" problem I've been having with my driver's side ballast because one pin on the bulb was broken and I thought it wasn't getting a good connection. I replaced the bulb that has 2 perfectly good studs and it was fine until last night. A perfectly good connection and the flicker for a few milliseconds issue happens again. So I switched the driver's side ballast with the passenger's side headlight and it still didn't work. This leads me to think the driver's side ballast failed?
Had a ballast failure. I just recently developed the same "flicker on for a few miliseconds then shut off" problem I've been having with my driver's side ballast because one pin on the bulb was broken and I thought it wasn't getting a good connection. I replaced the bulb that has 2 perfectly good studs and it was fine until last night. A perfectly good connection and the flicker for a few milliseconds issue happens again. So I switched the driver's side ballast with the passenger's side headlight and it still didn't work. This leads me to think the driver's side ballast failed?

I have the same stuff and I'm still golden.
Welcome to Eric's life. These things are nothing but problems. I can't live with them, but tonight proves that I can't live without them either
they have a dark, dark history..
but hopefully a "bright" future.
Q: to install the mini h1 retro on a 2013 f150, do I need to physically modify the headlight assembly ? The retrofit source makes a comment that for some h13 applications (not specifically mentioning f150), sanding the back of the headlight assy may be needed.









