u/SomeFactsIJustMadeUp

I’ve got a 2011 SHO. I recently had a headlight go out, come to find out, the ballast failed. I couldn’t afford the OEM parts at the moment, so I snagged one off Amazon. I made the input and output voltages were the same.
After I installed my new ballast, my light definitely worked! But unfortunately, it doesn’t shut off. The lights are off at the switch, I’ve waited for the rest of the light to turn off after turning off the car, but it stays on as seen in the photo. I currently have the battery disconnected so it doesn’t drain the battery.

Any ideas what’s causing this? I’m guessing it’s because it’s a cheaper version.