28 x 28 mm High Power COB
The larger CM28XX platform supports higher lumen lighting modules for demanding fixture designs.
2828 COB LED
2828 COB LED for High Power Commercial and Outdoor Lighting
KINGBRIGHT CM28XX 2828 COB LED is a mirror-aluminum COB LED series with 28 x 28 mm substrate, 22 mm LES, 120 degree viewing angle and 50W / 90W options for high lumen lighting manufacturers and OEM projects.
Series: CM28XXSize: 28 x 28 x 1.55 mmLES: 22 mmPower: 50W / 90WAngle: 120 degCCT: 2700K-6500KESD: HBM 4000V
High Power COB
High Lumen COB LED Platform
Designed for higher power commercial lighting fixtures that require strong thermal design and stable COB output.
Product Images
2828 COB LED Product, Dimensions and Application Views
2828 COB LED Product Appearance
Real product image for the CM28XX mirror-aluminum COB LED package.
2828 COB LED Dimensions
Package outline with 28 mm body size, 22 mm light emitting surface and mounting hole reference.
High Power Lighting Application
Application reference for studio lighting, outdoor spotlights and high lumen area lighting.
Technical Specifications
Real CM28XX 2828 COB LED Datasheet Parameters
The following values are extracted from the KINGBRIGHT CM28XX datasheet. Final product code should be confirmed by power, CCT, CRI, voltage code, color tolerance and suffix requirements.
Product SeriesCM28XX
Product Type2828 COB LED / mirror-aluminum COB LED
Package Size28 x 28 x 1.55 mm
Light Emitting Surface22 mm LES
SubstrateMirror aluminum substrate with silicone package
Viewing Angle120 degrees
Voltage Options36V for CM2850; 54V for CM2890; coding rules also define 9V / 18V / 36V voltage codes
CCT Range2700K, 3000K, 3500K, 4000K, 4500K, 5000K, 5700K, 6500K color ranks
CRI CodingRa70 / Ra80 / Ra90 / Ra95 options by product code
ESDHBM 4000V
Operating Temperature-30 C to +85 C
Storage Temperature-40 C to +80 C
Junction Temperature125 C max
Hand Soldering350 +/-20 C for 3-5 sec
Packaging16 pcs x 4; label includes product model, lot no., flux/power, voltage/current, CCT/XY, Ra/SD/R9 and quantity
ComplianceRoHS compliant
Electrical & Optical Options
CM2850 and CM2890 COB LED Options
| Model | Typical Power | Max Power | Binning Current | Max IF | Pulse IF | Typical Lumens | Thermal Resistance |
|---|---|---|---|---|---|---|---|
| CM2850 | 50W | 75W | 1400mA / 36V | 2000mA | 2200mA | 8000 lm typ @ 4000K / Ra80; 7050 lm typ @ 3000K / Ra90 | 0.32 C/W |
| CM2890 | 90W | 90W | 1600mA / 54V | 2400mA | 2500mA | 13500 lm typ @ 4000K / Ra80; 11500 lm typ @ 3000K / Ra90 | 0.16 C/W |
Features & Advantages
COB LED Features for High Power Lighting Projects
50W / 90W Options
CM2850 and CM2890 support high output commercial, studio, floodlight and outdoor lighting projects.
22 mm LES
The 22 mm light emitting surface gives fixture engineers a clear optical reference for reflectors and lenses.
High Reliability
The datasheet specifies HBM 4000V ESD sensitivity, RoHS compliance and 125 C maximum junction temperature.
Engineering Support
KINGBRIGHT supports COB model selection, CCT/CRI confirmation, thermal review and OEM lighting project communication.
Applications
Recommended 2828 COB LED Applications
CM28XX is suitable for high lumen lighting products that need a larger 22 mm light emitting surface, strong thermal design and selectable CCT / CRI. Typical use cases include floodlights, studio lights, spotlights, downlights, PAR lamps and outdoor area lighting.
Datasheet Download
Download the Official CM28XX 2828 COB LED Datasheet
The datasheet includes product coding rules, package dimensions, optical and electrical characteristics, CCT color ranks, packaging specifications and storage / handling precautions.
Process Notes
Packaging, Storage and Handling Guidance
Packaging Label
Labels include product model, lot number, flux/power, voltage/current, CCT/XY, Ra/SD/R9 and quantity.
Moisture Control
Store in a drying cabinet with desiccant at 5 C to 30 C and humidity below 60%RH.
Silicone Surface
Avoid strong pressure on the silicone surface. Use suitable tools and handle from the side surface.
ESD Protection
Operators should use anti-static wrist straps or gloves. Equipment and instruments should be properly grounded.
Thermal Review
High power COB LEDs require proper heat dissipation design. Confirm heat sink, substrate and drive current before production.
FAQ
Common Buyer Questions
What is the 2828 COB LED product series?
This page covers the KINGBRIGHT CM28XX 2828 COB LED series, a mirror-aluminum COB LED platform with 28 x 28 mm substrate size and 22 mm light emitting surface.
Which power options are available?
The datasheet lists CM2850 and CM2890 options, corresponding to typical 50W and 90W COB LED configurations.
What luminous flux is listed in the datasheet?
CM2850 is listed at 8000 lm typical at 4000K Ra80 and 7050 lm typical at 3000K Ra90. CM2890 is listed at 13500 lm typical at 4000K Ra80 and approximately 11500 lm typical at 3000K Ra90 based on the listed 130 lm/W efficacy.
What voltage options are used?
The typical table lists 36V for CM2850 and 54V for CM2890. Final voltage code should be confirmed by the selected product code.
What applications are recommended?
The datasheet recommends spotlights, downlights, PAR lamps, bulbs, restaurant lights and outdoor landscape lighting. The high power 2828 format is also suitable for floodlights, studio lighting and large commercial fixtures.
What should engineers review before mass production?
Please confirm power, voltage, CCT, CRI, drive current, heat sink, fixture optics, soldering process and reliability requirements before production.
Can KINGBRIGHT provide samples and datasheet support?
Yes. Send your target model, power, CCT, CRI, quantity and application details to request datasheet confirmation and sample support.
Product Inquiry
Send Your 2828 COB LED Requirement
Share your required model, power, CCT, CRI, voltage, quantity, fixture type and sample request details. KINGBRIGHT can support datasheet review and OEM lighting project communication.
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