H7 indicates an after market HID kit.
D2S bulbs would be OEM.

 

actually h7 is stock halegeon lights and ds2 are stock hid.

 

pa4ul, he has an after market H7 HID kit.

 

i have stock Halogen capsule headlights and they are h7.

 

Check the wiring to be sure you have all good connections....check to make sure you have the proper voltage/amps for the HID bulb you are running...Could be overloaded. Most likely need to replace the ballast all together. Check the amps/volts with a meter to make sure the ballast is actually not getting power first...If it is getting power but continues to fail to ignite, you may be overloading it.

 

Hi,

Try to search it in any of the following search engines (google, yahoo, msn, bing etc..) you will get the required information. Type the the word for example you are looking information about (OEM ballast), then type this(OEM ballast) word any of the above search engines.

 

MAC5Gem has probably fixed his problem. Why bring this thread back.
He has an H7 HID kit, and can't use OEM ballasts.

 

couple spammers up there