DANLERS Daylight Linked Dimmers automatically dim lights according to ambient light level to maintain a constant brightness of between 100 and 1000 lux (adjustable).

Function demonstrated with the lighting in an office

CEFL PHDD 10VDC / CEFL DD 10VDC / CEFL PHDD DSI

Daylight linked dimmer switch brings lights on – only when needed

dld-function-diagram-1 dld-function-diagram-2
Enough daylight – Lighting OFF Reduced daylight – Lighting DIMMED
Night, Occupied – Lighting ON
Night – Lighting ON