HID Bulb size

[GAFF]

I have 10k hids and i just got my projectors in and I need to use a H1 bulb but right now i have the 9007 so can i just purchase the buld and swap it?

[Lawngoose]

if the new housings require h1, but you have 9007 kit... if the connectors are the same (should be) you should be fine. However, make sure if you a bixenon kit you replace it with a h1 bixenon bulb

[The Guz]

I have 10k hids and i just got my projectors in and I need to use a H1 bulb but right now i have the 9007 so can i just purchase the buld and swap it?

Yes you can just get the bulbs. Thats what I did.