Looked up the headlights that came with my car! They are CIBIE Brand made in Belgium, for motorcycle use only. Were these used to improve lighting or should I just use a standard sealed beam light?
Not sure where you looked that up. CIBIE were never used as the standard lamp except as an optional driving lamp on the "S" saloon. Lucas lamps were used for the E type in both sealed version (USA) or eliment type for ROW. Where are you drawing your information from? Having said that was your car from Belgium? If so it used C 16058 which is a Jaguar part for an unknown lamp (unknown to the US) The US lamp was C.23643 which was sealed beam. Please tell us more about your car and its history.