Do any of you use a removable brake light and stick it on the luggage ?
I used to - when we used a large case on the rack. The panniers do not obscure the high level brake light - there is a gap between them.
There is a plug and socket near the base of the cobra lamp. If you buy the right connectors (off eBay) you can make up a “Y” cable so that the extra light plugs in to the system with no permanent modifications to your car wiring.
One other solution I have seen is to mount a brake light on the luggage rack at the rear of the car. With some racks this is high enough and no need for a removable lamp.
