Danlers CEFL PHDD DSI Daylight Linked Dimmer (2m lead wire)
from Danlers (Model: CEFL-PHDD-DSI)
A Ceiling Mounted 10V DC Daylight Linked Dimmer Switch from Danlers that fits flush into false or plasterboard ceilings. Suitable for DSI dimmable ballasts only this switch dims light automatically according to the ambient light level and maintains a constant brightness of between 100 and 1000 lux according to requirements.
for Danlers CEFL PHDD DSI Daylight Linked Dimmer (2m lead wire)