Specifying LED downlights for a commercial project involves more than picking the right wattage. From cutout size and beam angle to IP rating and dimming protocol — every parameter matters. This guide helps lighting designers, electrical contractors, and procurement teams make the right choice.
1. Wattage & Lumen Output
For commercial applications, efficiency (lm/W) matters more than raw wattage. YNDLUX downlights deliver 100–120 lm/W, meaning a 10W fixture replaces a traditional 60W halogen with equivalent light output.
Recommended wattage by application:
- Office / Retail: 7W–15W
- Hospitality / Restaurant: 5W–10W (warm white 2700K–3000K)
- Supermarket / Warehouse: 20W–30W (cool white 4000K–5000K)
2. Beam Angle Selection
The beam angle determines light distribution across the floor. Use this as a guide:
- 15°–25°: Accent lighting, artwork, product highlighting
- 36°–45°: General ambient lighting in offices and retail
- 60°+: Wide-area illumination, corridors, open-plan spaces
3. IP Rating: When Do You Need IP65?
Standard recessed downlights are IP20 — suitable for dry indoor environments. For:
- Bathrooms, spa areas: minimum IP44
- Commercial kitchens, outdoor covered areas: IP65
- Cold storage, car wash facilities: IP67
YNDLUX offers IP20, IP44, and IP65 versions across our downlight series, all CE certified for European markets.
4. Dimming: DALI-2 vs. Phase Dimming vs. 0-10V
For modern commercial buildings, DALI-2 is the recommended dimming standard in Europe (EN 62386). It allows individual fixture addressing, scene setting, and energy reporting. YNDLUX downlights are available with:
- DALI-2 certified drivers
- Phase-cut dimming (Triac/ELV) for retrofit projects
- 0-10V analog dimming for cost-sensitive projects
5. CRI: Why It Matters for Retail
Colour Rendering Index (CRI) measures how accurately a light source renders colour compared to natural sunlight. For retail, food service, and healthcare:
- CRI 80+: Minimum for general commercial use
- CRI 90+: Recommended for fashion retail, restaurants
- CRI 95+: Art galleries, jewellery stores, cosmetics
YNDLUX standard downlights ship with CRI 90+. CRI 95 and 97 versions available on request.
YNDLUX Downlight Series for European B2B
Our commercial downlight range includes:
- Round Recessed: Ø68–Ø150mm cutout, 5W–30W
- Square Recessed: For grid ceiling systems
- Adjustable / Tiltable: 355° rotation, 30° tilt for accent lighting
- Trimless: Plaster-in design for premium interior projects
- IP65 Recessed: For wet areas and outdoor soffits
All models support OEM/ODM with custom branding. CE, RoHS certified. Samples available within 7 days.
Contact us at info@yndled.com to discuss your project requirements or request a product catalogue.
YNDLUX — LED Downlight Manufacturer China | CE Certified | European B2B Wholesale
