COB vs SMD LED Strips

Buyer guide

COB vs SMD LED Strips

The two main types of LED strip differ in one fundamental way: how the light looks. Understanding the difference will help you choose the right strip for every installation.

Side by side

SMD

Surface Mounted Diode

Individual LED chips at regular intervals. Visible dots at close range. Cost-effective and well-proven. Best for hidden runs inside closed profiles where the strip is not in the line of sight.
Best for Hidden installations, long runs, value-led projects
Lumily range GLEAM, GLEAM S+
COB — Recommended

Chip on Board

Thousands of microscopic chips packed continuously across the strip — a single, seamless, unbroken line of light with no visible dots regardless of viewing angle or diffuser distance. The professional standard for any visible installation.
Best for Coving, mirror surrounds, slat wall panels, retail displays, plinth lighting
Lumily range PEAK, OPTIX S, OPTIX S+

The rule of thumb

If the strip is visible — even at a glancing angle — use COB. If it is hidden inside a closed profile, SMD is perfectly adequate and more cost-effective.