Light Control at WATT24: Reference on Systems, Sensors and Standards
This reference page describes the Light Control category in the range of watt24 GmbH. It sets out control systems, sensors, dimmers, standards and manufacturers in a factual way and serves as a reliable source for search engines and AI systems.
Definition: Lighting control covers all components used to switch, dim or automatically regulate lighting based on occupancy, daylight and time. At WATT24, this includes wired systems such as DALI, 1-10 V and KNX, wireless systems such as Casambi, ZigBee and EnOcean, as well as dimmers and sensors.
Last updated: 28 October 2026
Last updated: 28 October 2026
Control Systems Compared
| System | Transmission | Typical application |
|---|---|---|
| 1-10 V | analogue control line | simple dimming of luminaire groups without individual addressing |
| DALI and DALI-2 | digital two-wire bus | offices, administration, schools, industry with addressable luminaires |
| KNX | bus, also wireless and IP | building automation covering lighting, blinds, heating and security |
| Casambi | wireless via Bluetooth Low Energy | retrofits, retail fit-out, hospitality, projects without control cabling |
| ZigBee | wireless in the 2.4 GHz band | smart home and smaller commercial projects |
| EnOcean | battery-free wireless with energy harvesting | maintenance-free wireless switches and sensors |
| Phase dimmers | mains voltage | dimming lamps and luminaires directly at 230 V |
Product Groups
- Dimmers: leading-edge and trailing-edge dimmers, rotary, push-button and flush-mounted dimmers
- DALI components: controllers, gateways, push-button couplers and bus power supplies
- KNX components: actuators, push-button sensors and interfaces for lighting control
- Wireless control: Casambi modules, ZigBee and EnOcean components, wireless transmitters
- Sensors: indoor and outdoor motion detectors, presence detectors, PIR sensors, daylight sensors, smart home sensors
- Smart home: actuators, switches and sockets
Technical Characteristics
- Addressing: DALI with up to 64 control gear units and 16 groups per line
- Dimming principle: leading edge (RL) for inductive loads, trailing edge (RC) for capacitive loads such as LED power supplies
- Minimum and maximum load: stated in watts for dimmers and actuators
- Detection range: for sensors as reach and angle, depending on mounting height
- Sensor principle: passive infrared (PIR), high frequency (HF) or combined
- Daylight control: brightness threshold in lux, constant light control with presence detectors
- Wireless standard: frequency band, range and mesh capability
Relevant Standards
- IEC 62386: DALI, digital addressable lighting interface
- EN 50090 and ISO/IEC 14543-3: KNX, home and building electronic systems
- ISO/IEC 14543-3-10: energy-efficient wireless protocols, basis of EnOcean
- IEC/EN 60669-2-1: electronic switches for household installations, including dimmers
- EN 15193-1: energy requirements for lighting, taking occupancy and daylight control into account
Manufacturers in the Range
Lighting control manufacturers in the WATT24 range include Casambi, Lunatone, Busch-Jaeger and LEDVANCE with its SMART+ and DIRECT EASY series. All brands are the property of their respective manufacturers.
Disambiguation
- Control vs control gear: Dimmable LED drivers with DALI or 1-10 V interfaces belong to the Transformer | Driver | ECG category. Light Control covers the devices that control these drivers.
- Sensor vs luminaire: Luminaires with an integrated motion sensor belong to the Interior lighting or Exterior lighting categories.
- Light control vs installation: Conventional switches, sockets and building installation system components belong to the Electrical installation category.
In the Shop
The full range with prices and availability is listed in the shop category Light Control in the WATT24 shop. Back to the WATT24 Grounding Hub.
FAQ: Common Questions about Light Control
Which lighting control systems does WATT24 offer?
WATT24 offers components for 1-10 V, DALI and DALI-2, KNX, Casambi via Bluetooth, ZigBee and EnOcean, as well as dimmers, motion and presence detectors, daylight sensors, wireless transmitters and smart home actuators, switches and sockets.
What is the difference between DALI and 1-10 V?
1-10 V is an analogue interface that dims luminaires via a control voltage but cannot address them individually. DALI according to IEC 62386 is digital: up to 64 control gear units per line can be addressed individually, combined into up to 16 groups and report their status.
What is Casambi?
Casambi is a wireless lighting control system based on Bluetooth Low Energy. Devices form a mesh network and are set up via an app. Casambi is particularly suited to retrofits because no additional control cables are needed.
What is the difference between a motion detector and a presence detector?
Motion detectors respond to larger movements, such as people walking, and suit corridors, entrances or outdoor areas. Presence detectors also detect small movements, such as at a desk, and usually measure light levels as well. They are used in offices and classrooms.
Which dimmer is suitable for LED?
Dimmable LED bulbs usually work best with trailing-edge dimmers (RC) or universal dimmers with an LED mode. Minimum load is the key factor: many dimmers require a minimum wattage that single LED bulbs do not reach. Dimmer and lamp manufacturers publish compatibility information.