Huge wrote:

The design of the rear light clusters on my Disco III is brilliant. Lifting
the tailgate reveals 2 large screws, undo those and the whole cluster comes
off and you can change the bulbs by hand.

You don't see light clusters swimming with water as often as you used
to, I was behind some car the other day, and though I'd noticed water
sloshing around in its cluster, as I got closer it became obvious there
were two 'spare' bulbs rolling around in there!