What are the different between COB led strips and SMD led strip lights?


COB (Chip On Board) and SMD (Surface-Mounted Device) LED strips are both excellent lighting options, but they differ in construction, performance and best-fit applications. Here is a detailed comparison to help you choose.

COB vs SMD: At a Glance

COB LED Strips

COB LED strip light

Continuous light line · high uniformity · premium look · smoother beam.

SMD LED Strips

SMD LED strip light

Individual light points · versatile · cost-effective · wide applications.

9 Key Differences Between COB and SMD LED Strips

LED Packaging Technology
COB

Multiple LED chips are directly mounted and encapsulated on a single board with a protective layer — no individual packaging, giving a continuous light-emitting surface.

SMD

Individual LED packages are mounted on a flexible PCB. Each LED has its own casing and is spaced apart from the others.

Lighting Uniformity
COB

More uniform light spread — light comes from a continuous surface with no distinct gaps between LEDs.

SMD

Still even, but slight gaps between individual LEDs can be noticeable on close inspection.

Heat Dissipation
COB

Often better heat dissipation thanks to the larger surface area of the board.

SMD

Individual LEDs may need more spacing between them for adequate heat dissipation in high-density applications.

Durability & Reliability
COB

More robust — fewer points of failure since there are no gaps between chips.

SMD

Reliable, but the higher number of individual LED units means a slightly higher chance of failure.

Cost
COB

More expensive to produce, which often means a higher cost for consumers.

SMD

Generally more cost-effective due to the maturity and wide use of the technology.

Application
COB

Ideal for smooth, uninterrupted light — backlighting for signage and general illumination.

SMD

Versatile — from residential lighting to automotive and decorative lighting.

Maintenance & Repair
COB

More challenging to repair — replacing a single failed LED is not practical; the whole section may need replacing.

SMD

Easier maintenance — individual LEDs can be replaced if they fail.

Aesthetics
COB

Appears as one continuous line of light with no visible dots — a clean, premium look.

SMD

Individual light points are visible, which some designs intentionally use for effect.

Intensity & Angle
COB

Can provide a wider beam angle and more intense light output thanks to the chip configuration.

SMD

A more defined and sometimes narrower beam angle, depending on the LED package type.

Conclusion

Choose COB for seamless, premium light lines — and SMD for versatility and value. Contact Lightstec if you need COB or SMD LED strips for your project.

Contact Lightstec →

SMD2835 LED Strip Light Series

Click any product to view specifications and request a quote:

LT-2835WW60R-W12

LT-2835WW60R-W12

SMD2835 · 60LEDs/m · DC12/24V · 12W/m

LT-2835WW60R-W12-S

LT-2835WW60R-W12-S

SMD2835 “S” · 60LEDs/m · DC12V

LT-2835WW120R-W24

LT-2835WW120R-W24

SMD2835 · 120LEDs/m · DC24V

LT-2835WW180R-CC

LT-2835WW180R-CC

SMD2835 · 180LEDs/m · CC

LT-2835WW192R-W12

LT-2835WW192R-W12

SMD2835 · 192LEDs/m · DC12V

LT-2835WW192R-W24

LT-2835WW192R-W24

SMD2835 · 192LEDs/m · DC24V

Lightstec LED Catalog

Download Our Latest Catalog as a PDF

To save you time, we have prepared a PDF catalog with all our latest LED light products. Leave your email and get it immediately.

    JerryHu

    About Author
    JerryHu

    Founder of Lightstec. Engineering degree. 13+ years in LED lighting. Sharing knowledge and solutions for LED lighting.

    Leave a Comment

    Update cookies preferences