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The Helvar 452 unit is a single-channel universal dimmer, suitable for leading or trailing-edge loads including mains-dimmable LED. The dimmer is a DIN-rail mounted unit that can control a maximum load of 1000 W. It has an out-of-box operation functionality.
- Lighting Control Solution:
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RoomSet - Lighting control protocol: DALI lighting control
- Device Mounting Method: DIN rail

The Helvar 454 is 4-channel trailing edge dimmer suitable for capacitive, resistive loads, low voltage lamps with electronic transformers and some mains-dimmable LED. The dimmer is a DIN-rail mounted unit that can control a maximum load of 500 W per channel.
- Lighting Control Solution:
ActiveAhead
Imagine
RoomSet - Lighting control protocol: DALI lighting control
- Device Mounting Method: DIN rail

DALI compatible interface for incorporating non-dimmable loads in DigiDim systems. 494 is DIN-rail mounted and can control four individually programmable relays. The relays are normally open, volt-free and can switch resistive loads up to 10 A.
- Lighting Control Solution:
ActiveAhead
Imagine
RoomSet - Lighting control protocol: DALI lighting control
- Device Mounting Method: DIN rail