pro user BRILJANT Assembly Instruction And Safety Regulations page 9

Place the second bike in opposite direction in the second foam holders and
secure it with the integrated, flexible rubber strap.
Now secure the bikes using the long safety belt (supplied). Run the safety
belt through the bike frame and around the bike carrier mainframe and tighten
firmly.
If the bikes are firmly tight, the lighting can be mounted.
Slide the pre-mounted light frame with number plate into the ends of the arms
(lamps are adjustable, so it should always fit). Secure the light frame with the
two safety pins.
Now connect the electric connector (7 or 13 pin) into socket of the car and check
the lights for a proper operation.
ATTENTION: Driving the bike carrier without light frame (including
license plate) is not allowed!
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