Lens diameter: 56mm
Lens protrusion length: 14mm
Body diameter: 63.5mm
Main body length: 23.5mm
Rear body diameter: 26mm
Rear body length: 32mm

Light has 3 wires: tail light, brake light, and earth.

There is a small clear window in underside of lens to illuminate the number plate with white light. Lens does not have an "E" mark, required in some countries for street use.

21/8 watt bulb included.