I recently installed new tail lights, the IPCW ones. The problem I am having is very odd though. They work great, they light up all four when braking, turn signals work perfect, same with hazards. But for some reason they do not light up at night with the headlights on. I do not know what could cause this, any help would be greatly appreciated. I need to get these working ASAP since they are tinted and my car is black so at night i doubt other cars can see me.

Thanks in advance for the help guys.