INFINITI Q45 HEADLIGHT REPLACE/REMOVE

Left Low Beam Headlight Bulb Is Out So Which Bulb Do I Replace It With?

I Tried To Replace Bulb By Removing The Car Battery. There Was Some Sort Of Screw That I Couldn't Get Off To Unscrew The Cap.

2000 Infiniti Q45. Trying To Replace Headlight & Can't Get The Light To Come Loose From The. Housing (i Guess). I Have Already Removed The...