In brief
The LED downlight 13W in 2700K warm white delivers 1085 lumens at a spectrometrically verified CRI 98. Dimming runs on the trailing edge through an ordinary LED dimmer on the 230V line, so no bus cable is needed. As a recessed ceiling downlight for a 72–85 mm cut-out it works with 14 bezel variants: round Ø90mm or square 90x90mm, IP20 or IP65 rated, in white, black, matt stainless steel and two discreet hotel bezels. At CRI 98 it sits well above the common CRI90 standard. It is typically used in homes, practices and offices and in refurbishments where the existing dimmer stays in place.
Cologne LED · Titan Spots series · 13W module · 2700K · trailing edge dimmable
Dimmable LED Downlight 13W · 2700K Warm White – Trailing Edge, CRI 98
The 13W downlight in 2700K is dimmed on the trailing edge with an ordinary LED dimmer on the 230V line, with no bus system involved. Choose below from 14 bezel variants: round or square, IP20 or IP65, in three colours or as a discreet hotel bezel.
trailing edge dimmable CRI ≥ 98 (spectrometric) 2700K warm white 13 Watt · 1085 lm 36° beam angle (24°/60° optional) no bus cable 50,000h service life 5-year warranty 14 bezel variants
CRI 98, above the CRI90 standard
Spectrometrically verified colour fidelity (Ra 98), clearly beyond the threshold the industry usually advertises.
Dimming without a bus cable
An LED-rated trailing edge dimmer is all it takes. No control line, no gateway, no commissioning.
14 bezel variants to choose from
One downlight, 14 bezels: round or square, IP20 or IP65, three colours plus two hotel bezels.
Made for refurbishments
The existing 230V wiring and the existing dimmer stay, only the luminaire is replaced.
Applications
A recessed downlight for projects without a bus system
The dimmable LED downlight 13W in 2700K delivers 1085 lumens and is controlled by the dimmer that is already on the wall. As dimmable downlights go it is unusually flexible: because it works with all 14 bezel variants, it fits almost any installation, from a dry living-room ceiling to a damp-rated outdoor area.
- In homes and refurbishments the 230V line is already there, and usually the dimmer too. Only the luminaire is replaced, no new cabling required.
- In practices, offices and shops one dimmer circuit per room is enough, as long as individual luminaires do not need separate control. That keeps installation and operation simple.
- In hospitality CRI 98 keeps food and drink looking true to life, and the brightness follows the time of day through the dimmer.
- In living rooms and bedrooms 2700K gives a yellowish-warm light like an incandescent lamp. Dimmed low it comes close to candlelight.
Downlight, recessed spotlight or ceiling light – what is meant?
Several terms are used for this type of fitting: downlight, recessed spotlight, LED ceiling light, recessed spot or ceiling downlight. They all describe the same principle, a luminaire set flush into the ceiling. The differences are structural: the bezel determines shape, colour, IP rating and cut-out size (72–85 mm here), the LED module determines output and colour temperature, and the driver determines how it dims. Anyone looking for dimmable LED downlight with high colour rendering usually means exactly this combination of bezel, 13W module and driver.
CRI 98 light quality, well beyond the CRI90 standard
CRI90, also written Ra 90, counts as the industry threshold for good colour rendering, and many suppliers advertise it. The 13W downlight of the Titan Spots series sits above it: the spectrometrically measured colour rendering index is 98, so it reproduces the daylight spectrum very closely.
Critical parts of the spectrum such as the R9 value (saturated red) are well above 90. For hotel lobbies, restaurants and high-end interiors that means skin tones, fabrics, wood tones and food are rendered without distortion, at every dimming level.
14 bezel variants for this downlight
Bezel selector: choose shape, IP rating and colour
This 13W downlight in 2700K works with every bezel below, and all of them fit a 72–85 mm ceiling cut-out. Use the tabs to switch between categories and click a tile to record your choice. All bezels shown are already listed in the shop.
No variant selected yet.
Round · IP20
White
Identical bezel design to the IP65 version; the photo shows the same shape.
Round · IP20
Black
Round · IP20
Matt stainless steel
Round · IP65
White
Identical bezel design to the IP20 version; the photo shows the same shape.
Round · IP65
Black
Round · IP65
Matt stainless steel
Square · IP20
White
Square · IP20
Black
Square · IP20
Matt stainless steel
Square · IP65
White
Square · IP65
Black
Square · IP65
Matt stainless steel
Hotel bezel · IP20
Black
Discreet, almost invisible transition to the ceiling, developed for hotel and contract projects.
Hotel bezel · IP20
White
Dezenter, nahezu unsichtbarer Übergang zur Decke – entwickelt für Hotel- und Objektprojekte.
Choosing the colour temperature
2700K or 3000K: where is the difference?
Both colour temperatures belong to the warm white band (below 3300 Kelvin under EN 12464-1). The gap is only 300 Kelvin, yet side by side it is clearly visible: 2700K has a yellowish-red cast like a classic incandescent lamp, while 3000K reads slightly crisper and more neutral without turning cold. Both versions share the same CRI 98, the same electronics and the same 14 bezels.
Rule of thumb: use only one colour temperature within a single sightline, because side by side the difference is immediately obvious. Different rooms may well use different colour temperatures, for example 2700K in living areas and 3000K in the kitchen and bathroom. When adding to an existing installation, match the Kelvin value already fitted.
This page shows the 2700K version. The same downlight is available in 3000K as well, also trailing edge dimmable and with the same bezels.
Dimming technology
Dimming without a bus: trailing edge in practice
On the trailing edge the dimmer sits directly in the 230V line and cuts off the rear part of each half wave. The more it cuts, the darker the light. The drivers of this downlight are built for exactly that, so dimming happens with the dimmer that is already on the wall. No extra control line is needed.
What matters is the right type of dimmer: an RC or universal dimmer with a trailing-edge setting, approved for LED loads. An old incandescent dimmer working on the leading edge will not do. In the trade this dimming method usually goes under the name TRIAC dimmable, and it refers to the same driver. If you are unsure, send us the make and model of your dimmer and we will check it.
Trailing edge or DALI – advantages and drawbacks
Both versions deliver the same light: 13 watts, CRI 98, 1085 lumens in 2700K. The difference lies entirely in the control.
In short: the trailing edge is usually the cheaper option and it is enough as long as one dimmer circuit per room will do. The group on that circuit stays modest, because the capacity of the dimmer limits how many luminaires it can carry. DALI costs more to install but allows individual addressing, central scenes and smooth, flicker-free dimming across many luminaires.
The DALI version of the same downlight is here: DALI downlight 13W · 2700K warm white – CRI 98 Premium.
Sustainability through a modular system
In this luminaire the bezel, LED module and driver are joined modularly rather than glued or soldered together. In the rare event of a fault, each component can be replaced or serviced on its own instead of scrapping the whole fitting.
That keeps the installation flexible over time: if the interior style changes later, the bezel can be swapped for another colour or model from the selector. Housing, module and ceiling cut-out stay as they are.
Lighting expertise What actually matters when dimming LED downlights
Three questions come up again and again in customer enquiries.
The first is the dimming method. The drivers work on the trailing edge, so the right choice is an RC or universal dimmer with a trailing-edge setting. A pure leading-edge dimmer from the incandescent era will not do.
The second is the group: all luminaires on one circuit dim together. If a room needs two separate moods, plan two dimmer circuits, use a KNX universal dimming actuator with two channels, or move to the DALI version.
The third is colour. Colour fidelity comes from the LED module, not from the dimming level. CRI 98 therefore holds at any brightness, and that is exactly what shows in dining rooms and in front of mirrors.
Technical data at a glance
Documents & data sheets
Download the technical specifications directly:
Other versions in the Titan Spots series
13W module · 2700K · DALI-2
The same module with 1085 lumens in 2700K, controlled digitally over DALI/DALI-2. Worth it when single luminaires need separate dimming or scenes are programmed centrally.
View the DALI version in 2700K
13W module · 3000K · DALI-2
The same package with 1115 lumens in the slightly cleaner 3000K, also controlled digitally over DALI/DALI-2.
View the DALI version in 3000K
All 14 bezels, four colour temperatures and both protection ratings are listed in the overview of LED downlights and recessed spotlights.
Frequently asked questions (FAQ)
Which dimmer do I need for this downlight?
A dimmer that works on the trailing edge, so an RC or universal dimmer with a trailing-edge setting and approval for LED loads. The drivers are built for exactly that. In the trade this dimming method is often sold as TRIAC dimmable. If you are unsure, send us the make and model of your dimmer and we will check it.
What is the difference between the 2700K and the 3000K version?
Both are warm white (below 3300 Kelvin). 2700K has a yellowish-red cast like an incandescent lamp and is usually chosen for living rooms, bedrooms, bars and hotel lobbies. 3000K reads slightly crisper and more neutral, which suits kitchens, bathrooms, hallways, offices and retail spaces. Technically the two versions differ only in colour temperature and luminous flux (1085 lm at 2700K, 1115 lm at 3000K); CRI 98, electronics and the bezel range are identical.
Trailing edge or DALI: which suits my project?
Trailing edge is the right choice when a 230V line with a dimmer is already in place and all luminaires in a room are dimmed together: flats, practices, small dining rooms, refurbishments. It is usually the cheaper option too, but the group on one dimmer circuit stays small, because the capacity of the dimmer limits how many luminaires it can carry. DALI pays off as soon as individual luminaires need separate control or scenes are programmed centrally, so in hotels, offices and KNX projects. In return DALI needs its own bus line and a gateway.
Can I integrate the trailing-edge version into a KNX system?
Yes. KNX universal dimming actuators let you set leading edge or trailing edge per channel, for example from MDT or Gira. The actuator then dims the whole channel, while scenes, time programmes and central commands run over KNX. What you do not get is individual addressing: within a channel all luminaires move together. If every luminaire needs separate control, choose the DALI version with a KNX-DALI gateway.
Can I change the beam angle?
Yes. As standard the downlight has a 36° beam. At extra cost we supply swap-in reflectors with 24° for a tighter accent beam or 60° for wider general lighting. The reflector is exchanged on the module itself, so the bezel and ceiling cut-out stay as they are.
What cut-out size do I need for this 13W downlight?
It depends on the bezel you choose: the round bezels (Ø90mm) need a cut-out of 72–85 mm, the square bezels (90x90mm) a comparable cut-out in the same range. Pick your variant in the bezel selector above.
Can I choose freely between all 14 bezel variants?
Yes. The 13W downlight in 2700K is compatible with every bezel shown: round or square, IP20 or IP65, in white, black, matt stainless steel and the two hotel bezel variants. Bezel, LED module and driver are modular.
Does the light flicker when dimmed?
Not with a suitable dimmer. Flicker almost always comes from a dimmer that works on the leading edge or is still designed for incandescent and halogen lamps. With an LED-rated trailing edge dimmer the downlight runs smoothly. If you want to dim very low and completely flicker-free, the DALI version is the better fit.
How far can the downlight be dimmed down?
That depends on how the driver and the dimmer work together. With a suitable LED dimmer low settings are no problem. The exact lower limit differs between dimmer makes, which is why we deliberately avoid quoting a fixed percentage here.
Do I need a separate driver for every downlight?
Every downlight comes with its driver. All drivers in a room sit on the same dimmer circuit, so the whole group is dimmed together.
Can the downlight be converted to DALI later?
Yes, the downlight itself stays as it is, only the driver is swapped. On top of that comes a 2-core bus line to the distribution board or DALI gateway. If you can see that step coming, lay the bus line right away.
What does CRI 98 mean compared with the commonly advertised CRI90 standard?
CRI90 (Ra 90) already counts as a high threshold in the lighting industry. This downlight sits above it at CRI 98: skin tones, fabrics and materials appear almost as they do in daylight. It shows most in hotel lobbies, in front of mirrors and when food is on display.
Can I reorder the bezel, LED module or driver separately?
Yes. The modular design lets the bezel, LED module and driver be reordered independently. A fault does not mean replacing the whole luminaire.
Can I change the bezel later if my interior style changes?
Yes. Bezel, housing and LED module are modular. If your interior style changes later, the bezel can be swapped for another colour or model from the selector above without touching the existing ceiling cut-out.
Expertise and context
🛡️ Expertise and trust
"Cologne LED, specialists in commercial lighting since 2013. Focused on contract lighting for hotels, restaurants, offices and shops, where compliant illumination and precise control are needed in equal measure."
Transparency note: our photometric data (CRI, R values, luminous flux) come from in-house laboratory measurements, validated continuously for quality assurance. Statements about dimming behaviour depend on the dimmer in use and cannot be quantified in general terms.
• A high CRI is decisive for perceived quality, particularly in hospitality and food service. YES. Standards treat a colour rendering index from CRI 90 (Ra 90) upwards as high quality; at CRI 98 this downlight is well above that. The indoor lighting standard recommends an Ra of at least 80 where colour rendering matters, and premium applications aim considerably higher.
Reference: EN 12464-1 (Light and lighting of work places).
• 2700K and 3000K both belong to the warm white band. YES. The classification draws the line at 3300 Kelvin: below that warm white, up to 5300 Kelvin neutral white, above that daylight white. Both versions sit in the same band, and the visible difference happens within it.
Reference: EN 12464-1.
• A modular design lowers follow-up costs. YES. Because bezel, LED module and driver can be replaced independently, faults can be fixed selectively and bezels swapped without reinstallation. That means less electronic waste and lower long-term cost than sealed one-piece luminaires.
• Flicker when dimming usually comes from the dimmer, not from the luminaire. MOSTLY. Dimmers that work on the leading edge, or are designed for incandescent lamps, do not get along with a driver that expects the trailing edge. With a suitable LED dimmer the downlight runs smoothly. Send us the make and model if you are unsure and we will check it.
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