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LED Drivers & Controls · DALI-2
Nucleo DALI DT6 and DT8 constant voltage power supplies turn a run of 12V or 24V LED strip into a controllable lighting zone: smooth dimming, colour temperature or RGBW, set from the building's DALI bus, a 0-10V panel or a simple push-button.
Why the driver decides the result
In most architectural projects the LED strip and aluminium profile are chosen first and the power supply last. Yet the driver is what determines whether a cove fades smoothly to a candle-like glow at 2% or steps and flickers, whether a meeting room can shift from crisp 5700K to warm 2700K, and whether the lighting can be grouped, scheduled and recalled as scenes by the building system.
The Nucleo DALI constant voltage range was built for that job. Each unit outputs a stable 12V or 24V DC to linear LED loads and listens to DALI commands: DT6 for brightness, DT8 for colour temperature or RGBW. Because 0-10V and push-dim inputs sit on the same hardware, the same driver can be installed today on a simple switch and handed over to a full DALI controller later without changing a wire on the load side.
Choose the device type
For single-colour or fixed-white strip. The whole output dims together on one DALI address, ideal for coves, shelf lighting, linear pendants and profiles where colour stays fixed.
For tunable white (warm + cool channels) or RGBW strip. Brightness and colour are commanded together, so lighting can follow the time of day or a scene in a hotel lobby or showroom.
Three ways to control
Full digital bus with individual addressing, groups and stored scenes. The standard for commercial, hospitality and BMS-integrated projects.
0V off to 10V full brightness. Works with standard 0-10V dimmer panels, KNX analogue outputs and BMS analogue channels.
A momentary push-button: short press for on/off, press and hold to ramp brightness. No controller needed, useful for homes and phased commissioning.
Models & specifications
| Wattage | 12V DC max current | 24V DC max current | DALI type |
|---|---|---|---|
| 60W | 5A | 2.5A | DT6 / DT8 |
| 80W | 6.7A | 3.3A | DT6 / DT8 |
| 100W | 8.3A | 4.2A | DT6 / DT8 |
| 150W | 12.5A | 6.25A | DT6 / DT8 |
| 200W | 16.7A | 8.3A | DT6 / DT8 |
| 250W | 20.8A | 10.4A | DT6 / DT8 |
| Output | 12V DC or 24V DC, constant voltage |
|---|---|
| Input | AC 100–240V, 50/60Hz |
| Control | DALI DT6 (dimming), DALI DT8 (tunable white / RGBW), 0-10V, Push-Dim |
| Dimming range | 0–100%, smooth and flicker-free |
| Power factor | > 0.90 |
| Protection | Short circuit, overload, over-voltage, over-temperature, auto-recovery |
| IP rating | IP20, indoor dry locations |
| Operating temperature | -20°C to +50°C |
| Cooling | Convection, fanless |
| Form factor | Ultra-slim body for concealed mounting |
Features
A narrow form that fits ceiling voids, trunking and channels where a brick-form driver will not.
Smooth fades from full output down to a low glow, comfortable on camera and for the eye.
Single-channel dimming or colour control from the same DALI family and controller logic.
DALI, 0-10V and push-dim on one unit, so the control system can change without changing the driver.
Short circuit, overload, over-voltage and over-temperature protection with automatic recovery.
A steady 12V or 24V DC rail with power factor above 0.9 for clean, even strip output.
Convection cooled and silent, with no moving parts to fail inside a sealed ceiling.
Six ratings from 60W to 250W in both voltages, so each zone gets a correctly sized driver.
Applications
Lobby, corridor and guestroom coves recalled as day, evening and night scenes.
Tunable white in meeting rooms and workspaces, tied to occupancy and daylight sensors.
Shelf and display lighting dimmed per zone; RGBW accents for seasonal displays.
Smooth transitions from lunch brightness to a low, warm dinner setting.
Calm, low-glare indirect light in patient rooms and waiting areas, dimmed at night.
Precise, repeatable light levels in wall-wash and cove details around artwork.
Push-dim today, a home automation system tomorrow, without replacing the driver.
House-light coves and step lighting grouped and faded on cue from the control desk.
Classroom and library lighting scheduled through the BMS for presentation and study modes.
Concealed power for recessed, surface and suspended aluminium profiles with LED strip.
Commissioning note
Because DALI, 0-10V and push-dim all terminate on the same driver, projects can be energised and tested on a simple push-button, then addressed and grouped once the DALI controller or BMS is in place. The LED side of the installation stays untouched.
FAQ
DT6 is the DALI device type for dimming a single channel, used with single-colour or fixed-white strip. DT8 adds colour control, letting one DALI address command brightness and colour temperature (tunable white) or RGBW. DT8 needs a controller that supports the DT8 colour commands.
Yes. The same unit accepts a 0-10V analogue signal or a push-dim momentary switch. Many projects start on push-dim and move to DALI once the controller or BMS is commissioned.
Multiply the strip's watts per metre by the run length to get the load, then add about 20% headroom. A 5 m run of 14.4 W/m strip is 72W, so a 100W driver is a sensible choice. Split very long or very heavy runs across more than one driver.
No. This is a constant voltage driver for 12V or 24V loads such as LED strip, neon flex and linear profile systems. Spotlights and downlights with a rated current (for example 350mA or 700mA) need a DALI constant current driver.
The two DALI terminals (DA+ and DA−) connect to the DALI line from the controller and can be daisy-chained from driver to driver. The DALI pair can run alongside mains in suitable cable, and each driver is then addressed and grouped from the controller during commissioning.
It is rated IP20 for indoor dry locations: false-ceiling voids, control panels, trunking and joinery cavities. Leave some air space around it for convection cooling and keep it accessible for service. It is not for outdoor or wet areas without a suitable enclosure.
The driver's protection shuts the output down. Once the fault is cleared it recovers automatically, so there is no fuse to replace. Over-voltage and over-temperature are protected in the same way.
Yes. Nucleo supplies DALI drivers pan-India, along with matching LED strip and profiles, and can help size drivers and plan DALI zones for a project.
Share your strip type, run lengths and control system, and we will size the drivers for each zone.
