UD85 LED COB Downlight | DOB Driver on Board Recessed Ceiling Light, 7W to 30W, CB/IECEE/CE Certified
A metal bodied COB downlight built on a DOB (driver on board) circuit design, with a dual layer PC and ALU+PC reflector for a wide, even beam. Available in four wattages from 7W to 30W, three color temperatures, and full CB, IECEE, and CE certification for export markets.
Full Specifications
| Power | Efficiency | Luminous Flux | PF / DF | Overall Size | Cutout |
|---|---|---|---|---|---|
| 7W | 80 LM/W | 560 LM | 0.5 / 0.7 | 2.5 inch, Ø90 x H40mm | Ø70mm |
| 10W | 90 LM/W | 800 LM | 0.5 / 0.7 | 4 inch, Ø120 x H40mm | Ø100mm |
| 20W | 85 LM/W | 1700 LM | 0.5 / 0.7 | 5 inch, Ø160 x H50mm | Ø140mm |
| 30W | 90 LM/W | 2700 LM | 0.9 / 0.9 | 8 inch, Ø225 x H50mm | Ø200mm |
| Input Voltage | AC 170 to 265V, 50/60Hz |
|---|---|
| Color Temperature | 3000K warm white, 4500K neutral white, 6500K daylight |
| Color Rendering Index | 80 Ra or higher |
| Light Source | COB chip |
| Driver Type | DOB, driver on board |
| Body Material | Metal and plastic |
| Installation Type | Concealed recessed mount |
| Dimming | Not dimmable, standard wall switch control |
| Operating Temperature | Minus 20C to plus 50C |
| Energy Saving | Up to 85 percent versus halogen equivalents |
| Rated Working Life | 15,000 hours |
| Certifications | CB, IECEE, CE |
Product Views
Wattage Lineup
Build and Component Engineering
PC Reflector
The outer polycarbonate reflector ring shapes the initial beam spread and keeps stray light from escaping past the fixture edge.
ALU+PC Reflector
A second aluminum and polycarbonate reflector layer sits closer to the COB source, adding a reflective inner surface that improves output efficiency versus a single reflector design.
COB Chip
A single Chip on Board module produces one continuous light point instead of multiple LED dies, giving a smooth beam with no visible shadow overlap.
Metal Housing
Full metal body supports heat dissipation for both the COB chip and the on board driver circuit, backing the 15,000 hour rated life.
DOB Design with COB Light Source
Driver on Board (DOB)
The driver circuit sits on the same board as the light engine rather than in a separate driver box. This shortens the electrical path, removes one wired connection point, and keeps the fixture body more compact.
Fewer Failure Points
Without a remote driver and its connecting harness, there is one less joint in the circuit where a poor connection can cause a field failure over time.
Dual Reflector COB Optics
Pairing a COB chip with two reflector layers, PC outer and ALU+PC inner, produces a wider, more even beam than a single reflector COB design at the same wattage.
Compact Depth
Combining DOB with a COB chip keeps the overall fixture height low, useful where ceiling void depth is limited.
Because the driver components and COB chip share the same thermal zone in a DOB design, the metal housing on the UD85 is sized to carry heat away from both at once, which is why body material and heat sink area matter more here than on fixtures with a remote driver.
Why the UD85 Performs Well in the Field
Single Source Beam
COB construction avoids the multiple shadow edges that can appear under close inspection with discrete LED arrays.
High Efficiency
80 to 90 LM/W across the range, cutting energy use by up to 85 percent compared with halogen equivalents.
Accurate Color Rendering
CRI 80 Ra or higher keeps colors looking natural under the light rather than washed out.
Wide Ambient Range
Rated from minus 20C to plus 50C, suitable for ceiling voids and storage conditions that see significant heat buildup.
Three Color Temperatures
3000K, 4500K, and 6500K from one product line covers warm hospitality through daylight retail and office use.
Compact DOB Body
No separate driver box to fit above the ceiling, simplifying installation and reducing the parts count per fixture.
Voltage Compatibility, Please Note
Built for High Ambient Temperature Regions
Thermal Performance in Hot Climates
Ceiling voids without direct air conditioning, rooftop storage, and unshaded warehouse staging can all push ambient temperature well past normal room conditions before a fixture is even installed. The UD85’s metal housing is sized to hold both the COB chip and the on board driver within safe operating temperature through this range.
Certifications and Market Access
Current Certifications
CB Certificate and IECEE: Testing follows IEC 60598 under the CB Scheme, and because the scheme works on mutual recognition, the test report can be presented to national certification bodies in over 50 member countries instead of repeating full safety testing in each destination market.
CE Marking: Confirms compliance with the EU Low Voltage Directive 2014/35/EU and EMC Directive 2014/30/EU, required for legal sale across the EU, Norway, Iceland, Liechtenstein, and Switzerland.
Order Information
The fields below are placeholders. Please confirm exact figures with the supplier before issuing a purchase order.
| Minimum Order Quantity | [Insert MOQ, e.g. 500 to 1,000 pcs per model/wattage] |
|---|---|
| Sample Availability | [Insert sample lead time and cost] |
| Production Lead Time | [Insert lead time after deposit and sample confirmation] |
| Payment Terms | [Insert terms, e.g. T/T deposit, balance before shipment, L/C at sight] |
| Packaging | [Insert unit packaging and carton specification] |
| Loading Quantity | [Insert pcs per 20ft / 40ft container by wattage] |
| Warranty | [Insert warranty period] |
| Incoterms | [Insert available terms, e.g. FOB, CIF, EXW] |
OEM and ODM Options
- Private label packaging: Buyer branded carton and inner packaging for retail distribution.
- Custom color temperature ratio: Fixed single CCT versions available alongside the standard three option range.
- Logo and marking: Laser or silk screen marking on the housing or driver label for qualifying order volumes.
Confirm minimum quantities and tooling costs for each customization option directly with the supplier.
Where the UD85 Is Typically Installed
- Hotels and meeting rooms: 3000K or 4500K where a compact fixture depth and low glare matter for guest comfort.
- Retail stores: 20W or 30W units at 4500K for even floor coverage with a smooth COB beam.
- Offices: 10W or 20W at 4500K across a standard ceiling grid.
- Restaurants and cafes: 3000K for a warm dining atmosphere.
- Residential interiors: 7W for hallways and closets, 10W for bedrooms, 20W for living rooms and kitchens.
- Shallow ceiling void projects: DOB construction keeps fixture depth compact where retrofit ceiling space is limited.
Frequently Asked Questions
What does DOB mean and why does it matter?
DOB stands for driver on board, meaning the driver circuit is integrated onto the same board as the COB chip rather than housed in a separate box. This gives a slimmer fixture profile and fewer wired connections compared to a fixture with a remote driver.
How does the dual reflector design differ from a single reflector COB downlight?
The UD85 pairs an outer PC reflector with an inner ALU+PC reflector layer close to the COB chip. The added reflective inner surface spreads light more evenly than a single reflector ring at the same wattage.
Can the UD85 be dimmed?
No, the standard UD85 is not dimmable and is designed for on and off wall switch control.
What ceiling cutout size does each wattage need?
7W needs Ø70mm, 10W needs Ø100mm, 20W needs Ø140mm, and 30W needs Ø200mm.
Is this fixture suitable for bathrooms or outdoor areas?
The UD85 carries an IP20 rating and is intended for dry indoor locations only.
Is SASO/SABER certification included?
SASO/SABER registration is handled separately from CB, IECEE, and CE. Please confirm current SASO/SABER status for this model with the supplier before placing an order intended for the Saudi market.
Why is the input voltage range 170 to 265V rather than a wider range?
This range covers standard 220V and 230V mains with normal fluctuation. Sites with voltage that can drop below 170V, such as weak grids or generator power under load, should confirm compatibility or ask about a wider range driver option.
Requesting a Quotation or Sample
For MOQ confirmation, FOB pricing by wattage, certification documentation, or OEM packaging options, contact the sales team with your target wattage mix and destination port.