Are EF Falcon and NF Fairlane Headlight assemblies interchangeable.

I need a pair for my car - they have fogged up and need to be cleaned up.

Has anyone got experience in cleaning their lights up - please let me know as this would be cheaper and neater than the long method.

No, they are not interchangable unless you choose the EF or EL fairmont ones. The EF low series are slightly different in shape. Do a search on "Yellow", or better still visit the document section.
Cheers
TW