For DALI, KNX and Loxone lighting projects

Plan a matched 24V LED spot system
before installation

TILLUME helps you match LED spots, installation frames, final LED-side controllers and 24V DC power supplies,
so your electrician can confirm a complete low-voltage lighting system for DALI, KNX or Loxone projects.

View system risks Choose matched components
Hidden system details

The products may look compatible, but the system still needs to be matched

Most project owners already know they need spots, frames, controllers and power supplies. The real risk is that small system details are not visible in a shopping cart: mechanical serviceability, 24V power behaviour, controller output and dimming response.

Modular fixture serviceability

TILLUME's modular design makes later light-source replacement more economical as LED technology evolves. Front-side installation also reduces the need to remove the entire fitting from the ceiling and lowers the risk of damaging the finished ceiling.

24V power behaviour

Not every 24V power supply is designed for PWM lighting loads. TILLUME power supplies support adjustable output voltage for voltage-drop compensation, keep around 20% reserve within rated planning and are selected for stable low-voltage LED operation.

Controller output and dimming response

The final LED-side PWM output must match the spot response. TILLUME LED spots can support 4 kHz 1% PWM and 1 kHz 0.3% PWM, while TILLUME DALI LED Controllers use logarithmic dimming and 4 kHz PWM for visually smooth control.

One matched supplier logic

Buying matched components from one system supplier reduces mismatch risk, avoids responsibility gaps between different vendors and improves consistency across the lighting installation.

Matched system logic
Upper-level control path
DALI / KNX / Loxone
Final LED-side output
DALI LED controller / KNX PWM actuator / Loxone PWM or DALI interface
24V DC power supply + matched LED spot module + frame
Low-voltage planning principle

DALI, KNX and Loxone do not replace LED-side matching

The protocol defines how the system is controlled. The lighting result still depends on whether the final LED-side output, the 24V power supply, the LED spot module and the installation frame are planned as one low-voltage lighting system.

Important: 24V LED spots must not be connected directly to 230V mains or directly to a KNX bus. The final wiring and safety check should be confirmed by a qualified electrician or installer.
Control path selection

Confirm the final LED-side output, not just the protocol name

DALI, KNX and Loxone are upper-level control paths. The spot performance depends on the final 24V LED output, channel logic, PWM behaviour, total load and Tunable White requirements.

Project path What it controls What must be matched Typical chain
DALI Professional lighting control through DT6 or DT8 LED controllers. DT6 / DT8 mode, channels, total load, Tunable White logic and 24V power supply. DALI LED controller + 24V LED spot + 24V DC power supply
KNX + DALI KNX handles building logic while DALI controls the LED lighting output. Gateway, DALI controller type, addresses, channels, load and power layout. KNX-DALI gateway + DALI LED controller + 24V system
KNX PWM A KNX actuator provides the final 24V PWM output. PWM frequency, minimum dimming level, load per channel and LED spot response time. KNX PWM actuator + matched 24V LED spot + 24V DC power supply
Loxone Loxone can use PWM outputs or a DALI interface depending on project design. Final output type, Tunable White channel logic, total load and power supply reserve. Loxone PWM or DALI path + 24V LED spot system
Matched components

Match the complete system: LED spots, frames, controllers and 24V power supplies

The benefit is not just buying everything together. It is making sure mechanical serviceability, LED-side control output and 24V power behaviour are planned as one low-voltage lighting system.

1

24V LED Spot

Confirm lumen output, CRI, colour temperature, Fixed CCT, Tunable White or Dim-to-Warm type, plus PWM response at low dimming levels.

TILLUME spots can support 4 kHz 1% PWM and 1 kHz 0.3% PWM.
2

Installation frame

Confirm front-side installation, modular replacement, ceiling finish and maintenance access, not only cut-out size or adjustable angle.

Modular front installation helps reduce ceiling damage risk during later service.
3

Controller / actuator

Confirm DT6 / DT8, PWM frequency, channel count, load per channel, logarithmic dimming behaviour and Tunable White logic.

TILLUME DALI LED Controllers use 4 kHz PWM and logarithmic dimming.
4

24V DC power supply

Confirm PWM-load suitability, adjustable output voltage, cable length, voltage drop and around 20% reserve within rated planning.

TILLUME power supplies are selected for stable 24V LED system operation.
Before installation

What your electrician should confirm before installation

Use this checklist to reduce mismatch risk, avoid unclear responsibility between suppliers and make the final system easier to approve on site.

Spot and frame

Spot type, quantity, installation frame, front-side installation, replacement access and ceiling finish.

Controller output

DALI DT6 / DT8, KNX PWM, Loxone PWM or DALI interface, channel count, load per channel and parameter logic.

PWM and dimming

PWM frequency, minimum dimming level, Tunable White or Dim-to-Warm logic and LED spot response time.

24V power supply

Capacity, around 20% reserve, adjustable output voltage, cable length, voltage drop and installation position.

Switching and lifetime

If the AC input is switched by a relay, confirm inrush-current handling. TILLUME power supplies include input inrush suppression for this use case.

System responsibility

A matched system supplier reduces finger-pointing between separate vendors when compatibility questions appear during installation.

Frequently asked questions before ordering a matched 24V system

Why should I buy matched 24V lighting components from one supplier?

Because the risk is often in the interfaces: LED spot response, frame serviceability, final LED-side controller output, 24V power behaviour and responsibility between suppliers. A matched system reduces mismatch risk and avoids finger-pointing during installation.

Can 24V LED spots connect directly to KNX?

No. KNX is an upper-level control system. A KNX project usually needs a KNX-DALI gateway, a KNX PWM actuator or another suitable final LED-side output that matches the 24V LED spot system.

Does the 24V power supply affect LED performance?

Yes, within a system context. Output stability, reserve capacity, cable length, voltage drop and PWM-load suitability can affect reliability and dimming behaviour. TILLUME power supplies are selected for stable 24V LED system operation and allow output voltage adjustment for voltage-drop compensation.

Why does PWM frequency and LED spot response matter?

The final low-voltage output must match the LED spot response. If the actuator or the LED module cannot respond well at very low duty cycles, the system may not reach very low dimming levels. TILLUME LED spots can support 4 kHz 1% PWM and 1 kHz 0.3% PWM.

How much power should the 24V DC power supply provide?

It depends on total load, controller setup, cable length and installation layout. As a planning rule, allow around 20% power reserve and let the electrician confirm the final capacity and voltage-drop situation.

Matched low-voltage lighting system

Ready to plan your matched 24V LED spot system?

Choose the product groups below or prepare the checklist for your electrician before ordering spots, frames, controllers and 24V power supplies.

Choose matched components Prepare electrician checklist