1. Waterproof COB Downlight – Product Introduction
This Waterproof COB Downlight series, is engineered for high-ceiling commercial and hospitality projects requiring both durability and high-power illumination. Built from die-cast aluminum with a waterproof housing design, this fixture spans ten size-and-wattage configurations from a compact 75mm cutout at 10W up to a large 220mm cutout at 70W, making it suitable for both standard commercial ceilings and expansive high-bay installations such as hotel lobbies and exhibition halls. The COB light source delivers a high luminous flux of 100–120lm/W with a color rendering index above 80/90, ensuring accurate color representation for retail and hospitality display environments.
This Waterproof COB Downlight is backed by a 3 year warranty, positioning it as a reliable long-term lighting solution for commercial engineering projects where fixture replacement and maintenance costs are a key procurement consideration.


2. Application Scenarios
The Waterproof COB Downlight is well suited for:
- Hotels & Hospitality Venues – High-power output suits tall lobby ceilings and grand entrance areas
- Exhibition Halls & Showrooms – Wide beam angle options (24°/45°/60°) allow tailored display lighting
- High-Ceiling Commercial Spaces – Larger cutout sizes (155mm–220mm) provide effective illumination at elevated mounting heights
- Outdoor-Adjacent & High-Humidity Areas – Waterproof housing suits covered outdoor or semi-exposed installations
The extensive power range allows distributors to serve both standard retail lighting projects and larger-scale hospitality and exhibition engineering contracts under one coordinated product family, reducing the need to source separate high-power fixtures from different suppliers.
3. Waterproof COB Downlight – Specifications
| Size | Cut-out size | Power |
|---|---|---|
| Ø85×H70mm | Ø75mm | 10W |
| Ø110×H78mm | Ø95mm | 15W |
| Ø110×H78mm | Ø95mm | 18W |
| Ø135×H91mm | Ø125mm | 20W |
| Ø135×H91mm | Ø125mm | 24W |
| Ø180×H106mm | Ø155mm | 36W |
| Ø180×H106mm | Ø155mm | 40W |
| Ø242×H120mm | Ø220mm | 50W |
| Ø242×H120mm | Ø220mm | 60W |
| Ø242×H120mm | Ø220mm | 70W |
| Attribute | Detail |
|---|---|
| Light Source | COB LED |
| Color Temperature | 2700K–6500K |
| Input Voltage | AC 220–240V |
| Power Factor | ≥0.5/0.9 |
| CRI | ≥80/90 |
| Beam Angle | 24° / 45° / 60° |
| Material | Die-Cast Aluminum |
| Shade Colors | Matte White / Matte Black / Gun Black / Bright Silver |
| Warranty | 3Years |
This ten-configuration matrix allows distributors to present a complete high-power downlight range spanning small accent applications through large-scale commercial installations under a single coordinated product line.
4. FAQ
Q: What is the maximum cutout size available for this Waterproof COB Downlight?
A: The largest configuration in this series uses a 220mm cutout at up to 70W, suitable for high-ceiling commercial and hospitality installations.
Q: What beam angle options are available?
A: This fixture is available in 24°, 45°, and 60° beam angle options to suit different lighting distribution needs.
Q: What warranty is provided?
A: This Waterproof COB Downlight series is backed by a 3–5 year warranty depending on configuration.
Q: What shade color options are available?
A: This fixture is available in matte white, matte black, gun black, and bright silver shade colors.
5. Why Choose Us
As a direct manufacturer, we offer factory-direct pricing on the Waterproof COB Downlight across all ten size and wattage configurations, without middleman markups that typically raise wholesale costs. Our production line maintains high stock availability, supporting both small trial orders for new distributors and large-scale commercial project orders for hospitality and exhibition contractors.
Full product documentation, including CRI, power factor, and beam angle specifications, is provided to streamline your import process and project specification requirements for commercial engineering procurement.
6. OEM / ODM Services
For distributors building a private label commercial lighting range, we offer:
- Custom Branding – Logo application on product body, packaging, and manuals
- Custom Packaging – Neutral, semi-branded, or fully branded carton design
- Spec Customization – Adjustable wattage, beam angle, or shade color per project requirements
- Flexible Order Volumes – Suitable for trial orders and recurring commercial project shipments alike
7. Factory
Our factory specializes in high-power commercial LED lighting production, with dedicated lines for waterproof COB downlights and related high-ceiling fixtures. Standard export carton packaging is used across our product range, designed to withstand international freight handling with minimal damage risk. Quality control is applied at each production stage, from die-cast aluminum inspection to final COB module testing, ensuring consistent output across bulk orders.
This Waterproof COB Downlight is a practical addition to any distributor’s lighting catalog, offering the power range, waterproof durability, and beam angle flexibility that B2B buyers require when sourcing hotel and exhibition hall lighting at scale.
For ingress protection rating standards, see the IEC IP Rating guidelines. Looking for more options? Browse our full range of LED ceiling lights.









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