COB LED Strips: Why They're Better Than Traditional SMD

COB (Chip-on-Board) LED strips represent the latest evolution in strip lighting technology. Unlike traditional SMD strips with visible individual LED points, COB strips produce a continuous, seamless line of light.

How COB Strips Work

COB technology embeds the LED chips directly into the substrate and covers them with a phosphor layer. This creates a uniform light source without visible hotspots — even without a diffuser.

COB vs SMD: Head-to-Head

Light Quality - **COB**: Perfectly uniform, dot-free light output. No visible LED points even at close range. - **SMD**: Individual LED points visible, especially with 30-60 LEDs/m. Requires diffuser for smooth appearance.

Flexibility - **COB**: More flexible due to chip arrangement. Bends smoothly around curves. - **SMD**: Can be stiff, especially high-density variants.

Heat Management - **COB**: Distributes heat more evenly across the strip. - **SMD**: Heat concentrated at individual LED points.

Cutting - **COB**: Can typically be cut every 25-50mm. - **SMD**: Cut points vary by density (every 3 LEDs typically).

When to Use COB

• - Profile-free installations: Where you don't want to use aluminum channels or diffusers
• - Close-viewing applications: Display cases, shelving, mirrors
• - Curved surfaces: The flexibility of COB strips handles bends better
• - High-end residential: Where seamless light quality matters most

Bulk Buying Considerations

COB strips cost 30-50% more than equivalent SMD strips. For large projects, the savings on aluminum channels and diffusers can offset the higher strip cost. Calculate total installed cost, not just strip cost per meter.