| Item information | Value |
|---|---|
| HAN: | IL-ED10K |
| Category: | LED Downlights |
| color temperature: | 3000K Kelvin, 4000 Kelvin |
| average life cycle: | 50.000 hours |
| Power supply: | 230V 50/60 Hz ( 220V - 250V) |
| dimmable: | no (dimmable driver on request), DALI-driver, Yes Triac dimmable |
| luminous flux: | 4000 LM, 2000 Lumen |
| energy efficiency class: | A, A+ |
| beam angle: | 110°, 112° degree |
| power consumpt.: | 40 watt, 20 W |
| Additional information:: | 5 Jahre Herstellergarantie |
| IP-Class: | IP 44 |
| Application: | office / retail / service companies |
| warranty: | standard legal regulations apply |
| housing colour: | White |
| Unified Glare Rating (UGR): | <22 |
| LED manufacturer: | Samsung |
| colour: | White |
| consumption per 1000 hrs: | 40 kWh, 20 kWh |
| colour rendering (CRI): | Ra>90 |
| No flicker / flicker free: | Yes |
| luminous flux stability factor: | L90 | B10 |
| diameter / hole size: | 250-290mm |
| Product category: | LED recessed lighting |
The ED10K (300 mm) is a 40-watt high-power LED recessed downlight with trailing-edge dimming for ceiling apertures of 250 to 290 mm — with Samsung® LEDs, CRI 92 (Ra > 90), 4,000 lumens, flicker-free light (< 1 %) and IP44 protection. Designed for high-ceiling commercial spaces: shopping centres, malls, large office buildings, reception halls and conference centres with ceiling heights from 3.5 m.
Trailing-edge dimmer compatible with Merten, Busch-Jäger, Jung and Gira. Driver included (mounted separately). Four driver configurations available: ON-OFF / 40W trailing-edge / 20W trailing-edge / 40W DALI.
→ Compare all 5 models in the ED Series (110mm to 300mm)Professional light quality — in daily operation across demanding commercial projects. The ED10K 300mm is the high-performance model of the ED Series — in operation in shopping centres, malls, large office buildings, administration buildings, reception halls and congress centres. 4,000 lumens at just 40 watts means efficient operation even during long daily burning hours. With CRI 92, flicker index < 1 % and a 50,000-hour rated life, it sets benchmarks where other options quickly reach their limits.
✔ 40W · 4,000 lm ✔ CRI 92 ✔ Flicker < 1 % ✔ IP44 ✔ 5-year warranty ✔ 50,000 h
300mm LED recessed downlight for high ceilings — 40W · 4,000 lumens · aperture 250 to 290 mm
The ED10K 300mm is not a standard recessed downlight — it is the professional high-ceiling downlight for demanding commercial projects. With 40 watts and 4,000 lumens it delivers 67 % more luminous flux than typical 300mm flat panel fittings at 24 W — at identical efficacy of 100 lm/W. Available in 3000K Warm White or 4000K Neutral White, with a very good colour rendering of CRI 92 (Ra > 90).
It fits ceiling apertures from 250 to 290 mm — the typical openings in commercial and public-sector buildings. Dimmable via standard trailing-edge wall dimmers or KNX dimmer actuator. DALI-2 version for large projects available separately.
For even larger spaces or ceiling heights above 4 m → additional luminaires recommended; consult our lighting design team.
Colour temperatures — spec overview 3000K and 4000K
Warm atmosphere · hospitality, retail showrooms, hotel lobbies
Crisp, neutral light · offices, retail, conference rooms, shopping centres
Light quality: CRI 92 · 4,000 lumens · flicker index < 1 %
- 40W · 4,000 lumens — 67 % more light than typical 300mm panels at 24W
- Very good colour rendering CRI 92 (Ra > 90)
- Flicker-free — flicker index < 1 % (IEC-compliant)
- UGR < 23 — EN 12464-1 compliant for workplaces and retail
CRI 80 vs. CRI 90+ — see the difference for yourself
In large spaces with many light sources, the quality difference is especially pronounced. Drag the slider and pay close attention to reds, teal and skin tones.
IP44 — suitable for damp locations within buildings
With protection class IP44, the ED10K 300mm is also suitable for damp areas within buildings — such as covered outdoor entrances to large commercial buildings or interior spaces with elevated humidity.
245 mm (20W, aperture 200–230 mm) · 180 mm (15W, aperture 150–170 mm)
Aperture 290–310 mm? → 320mm recessed downlight with silver reflector (for very high ceilings)
Dimensions & Installation
| Outer diameter | 300 mm |
| Ceiling aperture | 250 · 260 · 270 · 280 · 290 mm |
| Installation depth | 50 mm (luminaire body) + driver separately |
| Beam angle | 110° wide-beam |
The driver is mounted separately in the ceiling void or surface-mounted enclosure at 40W — not inside the 50mm luminaire body. Rule of thumb: the aperture must be at least 10 mm smaller than the outer diameter.
Advantage over typical 300mm flat panels: These usually only cover 280–290 mm apertures. The ED10K fits apertures from 250 mm upwards — greater flexibility for existing installations.
Aperture 200–230 mm? → ED8KX 245mm (20W). Aperture > 290 mm? → 320mm silver reflector.
What's in the box — driver included
- 1× LED recessed downlight ED10K (300mm, white, chosen colour temperature 3000K or 4000K)
- 1× 230 V driver (dimming variant as ordered) — mounted separately in ceiling void
- Spring clips for tool-free ceiling installation
- Installation guide (see downloads)
Important: At 40W, the driver is larger than on smaller models and is mounted separately in the ceiling void or surface-mounted enclosure — not inside the luminaire body itself.
Tested dimmer compatibility
- Merten MEG5134-0000 rotary dimmer — up to 3 luminaires (at 40W per luminaire)
- Busch-Jäger 2250U / 6523U — up to 3 luminaires
- Jung 224 dimmer — up to 2 luminaires
- Gira 245000 LED rotary dimmer — up to 2 luminaires
Compatible with KNX trailing-edge dimmer actuators (e.g. MDT, Gira). For large KNX projects we strongly recommend the DALI-2 version of the ED10K 300mm — cleaner addressing, no minimum-load issues, direct group control.
Features & benefits at a glance
- 40W · 4,000 lumens — 67 % more light than typical 300mm panels at 24W
- Very good colour rendering CRI 92 / Ra > 90
- Flicker-free — flicker index < 1 % (IEC-compliant)
- IP44 — suitable for damp locations
- Steplessly dimmable via trailing-edge · DALI version available separately
- 5-year manufacturer warranty — vs. typical 24 months for flat panels
- 3000K Warm White or 4000K Neutral White
- Rated life 50,000 hours (L90 | B10) — approx. 2× flat panel lifespan
- Wide aperture range: 250 to 290 mm (5 sizes)
- Premium Samsung® LEDs
Downloads — data sheets & installation guide
All models in the ED Series — 5 sizes, 2 dimming variants
The ED10K is the highest-powered model in the complete ED Recessed Downlight Series:
40 W · 4,000 lm · CRI 92
→ Compare all 10 ED Series variants side by side
Frequently asked questions about the 300mm ED10K
Project advice or lighting design?
For larger commercial projects (shopping centres, offices, hotels) we advise you personally on lighting design, number of luminaires, driver selection and whether trailing-edge or DALI is the better solution.
← Back to ED Series overview (compare all 5 sizes)
