Palram CANOPIA BRIGHTON LED GROW LIGHT FULL SPECTRUM Mode D'emploi page 21

For Greenhouses Grand Gardener, Hobby Gardener, EcoGrow,
7
Prestige and Sun Room 6'+8' use screw #7442, as shown in
the Diagram b.
461 3 466 3 or 7442 3
a a
b
Option 2