The 24V Tunable White LED spot modules keep their output more stable across the specified input-voltage range than simple 24V LED modules. That gives more planning margin when several spots share one ceiling-lighting circuit. TILLUME also offers different COB light-source options, including Ra90 Expert modules and CRI95 Master modules for projects with higher colour-rendering requirements.

With LED strips, voltage can drop along the length of the strip, which may affect brightness and colour impression near the far end. TILLUME CCT LED strips use a 2 oz copper PCB: more copper lowers electrical resistance and helps reduce voltage drop in profiles, coves and indirect lighting zones.

A stable 24V DC power supply helps the whole lighting zone behave predictably, especially when dimming or when cable length creates voltage drop. Suitable TILLUME power supplies are selected for lighting use; adjustable-output models can add voltage headroom, while the power-supply design helps reduce audible noise during dimming.

Which products do I need for a 24V Tunable White LED setup?

Start with the installation layout and the LED source, usually a spot or strip with warm-white and cool-white channels. Then pair it with a controller or DALI EVG and a 24V DC power supply sized for the connected wattage, unless the EVG already includes the power supply.

Should I plan centrally in the electrical distribution board or locally near the LEDs?

Use a central electrical-distribution layout when the project keeps power supplies and LED-side controller devices in one serviceable place. Use local power near the LEDs when the DALI master or KNX-DALI gateway stays in the electrical distribution board, but the 230V-to-24V power supply and 24V input LED controller sit closer to the lighting zone to reduce long 24V runs.

Should I use DALI DT8 or a KNX LED actuator?

Both routes are common in KNX projects. DALI DT8 fits projects that already use a DALI master or KNX-DALI gateway and need DALI addressing or DALI luminaires. A KNX LED actuator can be simpler when the project drives 24V WW/CW spots or strips directly from KNX without adding a second field bus. The decision comes down to system architecture, space in the electrical distribution board, device count, service access and the required LED output behaviour.

Is DALI DT8 enough to drive 24V Tunable White LEDs?

No. DALI DT8 describes the control method for brightness and color temperature. The LED-side controller, actuator or EVG still needs to provide the correct output for the WW and CW LED channels.

Can one WW/CW controller output drive several spots or a long LED strip?

Yes, if the connected wattage stays within the controller, actuator or EVG limits. Tunable White outputs have separate warm-white and cool-white channels, so check the channel rating, total wattage, power-supply reserve, cable length and voltage drop. This matters most when several spots or longer LED strip runs share one output.

Should I use spots or strips?

Use spots for main ceiling lighting and task zones. Use strips for indirect, linear, shelf, cove or furniture lighting. Many projects use both, but they should be planned as separate controlled zones.

How do I size the 24V power supply?

Add up the connected wattage of the WW/CW lighting zone and select a 24V DC power supply with about 20% reserve. For long cable runs or larger strip installations, also check voltage drop and cable cross-section.