The DANLERS range of Ceiling Photocell Switches is designed for the automatic control of lighting loads. Lights can be switched on automatically when there is not sufficient ambient light and off when there is sufficient ambient light. the ‘reset’ versions require a manual wall switch to switch lights on when demanded.

Function demonstrated with the lighting in an office

CEFL PH / CEFL PHRE / CEPH NO / CEPH RE

Ceiling photocell switch brings lights on – only when needed

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