[Frost__2001]

MK 1 ( Pre-facelift ) Focus Lighting ( 1998 ~ 2001 )

Bumper Signel light - P21W ( Dual Filament P21/5W if you want them lit up with your parking lights )
Fender Repeaters and City Lights and High Mount (3rd) brake lights - 5w Wedge
Main Head lights - Dual filament H4L Halogen (50/55w)
Fog Light - 55w H1 Halogen
Xenon ( MACH HID's ) - H7
Hella E-Coded - H7 ( Both high & low beams )
Brake lights ( All Models ) - Dual filament P21/5W
Rear Fog light ( Sedan & Wagon ) - P21W
Rear Turn Signels ( All Models ) - P21W
Reverse lights ( All models ) - P21W
Rear Fog light ( All Hatch Models ) - P21W

MK 1.5 Facelift Focus 2002 ~ 2004 ( Inc. ST 170 & RS lights )

Xenon ( MACH HID's ) - H7 ( unchanged )
Fender Repeaters / City Lights / High mount (3rd) Brake light - 5w Wedge
Headlight Low beam - 50w Halogen H7
Headlight High beam - 55w Halogen H1
Brake lights ( All Models ) - Dual filament P21/5W
Rear Fog light ( Sedan & Wagon Models ) - P21W
Rear Fog light ( All Hatchback Models ) - P21W
Turn Signels ( All Models, Both Front & Rear ) - P21W
Reverse lights ( All Models ) - P21W
Front Fog lights ( All Models, But RS / ST 170 ) - 55w H11

Fog Light ST170 - 55w H3
Fog Light RS - have yet to find a light bulb list for this one yet.