Just got my HIDS from diane-shop today 600k h7. all wired up correct and they just flicker for about a second when i turn the lights on, then just go off! have swapped around all the ballasts and bulbs etc still doing it! could it be the volts or battery power? I have an fr tdi and the battery seems ok. Anyone else had this problem? not sure what to do? any help would be appreciated. Thanks