Pelgrim DSGA990MAT Notice D'utilisation page 59

OPERATION WITH A CONNECTED HOB
Lighting
When a connected hob is switched on, the lighting of the cooker hood
always switches on automatically. You can continuously adjust the
brightness of the hood via the hob. When you use the hob again (after
you have switched the hob off) , the lighting comes on at the preset
brightness.
When switching off a connected hob, the lighting of the cooker hood
remains on. Manually switch off the lighting with the lighting key on
your AutoAir hob or via your hood.
EN 11