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What Are COB LED Strip Lights

June 15, 2026

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Source: lideda


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COB LED strip lights are flexible lighting strips that use COB (Chip on Board) technology, where hundreds or even thousands of tiny LED chips are mounted directly onto a printed circuit board (PCB). Unlike traditional SMD LED strips that display individual light points, COB LED strips produce a smooth, continuous line of light with no visible hotspots.

This innovative design delivers better light uniformity, higher visual comfort, and a more premium appearance, making COB LED strips increasingly popular in residential, commercial, and architectural lighting projects.

How COB LED Strip Lights Work

Traditional LED strips use separate LED packages mounted at intervals along the strip. In contrast, COB LED strips place numerous LED chips very close together on the circuit board and cover them with a phosphor coating.

The result is:

  • Uniform light output

  • No visible LED dots

  • Wider beam angle

  • Reduced glare

  • Improved aesthetics

Because the light source appears as a continuous line, COB strips are particularly effective when installed in aluminum profiles or visible lighting applications.

Key Features of COB LED Strip Lights

1. Dot-Free Illumination

One of the biggest advantages of COB technology is the elimination of visible light spots. Even without a diffuser, the light appears smooth and consistent.

2. High LED Density

COB strips typically contain:

LED DensityTypical Chips per Meter
Standard COB320–480 LEDs/m
High Density COB528–840 LEDs/m
Ultra High Density COB960+ LEDs/m

Higher density provides better light uniformity and brightness.

3. Wide Beam Angle

Most COB LED strips offer a beam angle of approximately 180°, providing broader light distribution than many traditional SMD strips.

4. Flexible Installation

COB strips are highly flexible and can be cut at designated points, making them suitable for:

  • Curved surfaces

  • Shelving

  • Cabinets

  • Cove lighting

  • Custom lighting designs

COB vs. Traditional SMD LED Strips

FeatureCOB LED StripSMD LED Strip
Light OutputContinuousIndividual light points
AppearancePremiumStandard
UniformityExcellentModerate
GlareLowerHigher
HotspotsVirtually noneVisible
Decorative UseExcellentGood
CostSlightly higherLower

For applications where the strip itself is visible, COB technology generally delivers a much more refined lighting effect.

Common Specifications

Voltage Options

  • 12V DC

  • 24V DC

  • 48V DC (for long runs)

Color Temperatures

  • 2700K – Warm White

  • 3000K – Soft White

  • 4000K – Neutral White

  • 5000K – Daylight White

  • 6500K – Cool White

Color Rendering Index (CRI)

  • CRI 80+ for standard lighting

  • CRI 90+ for residential and retail applications

  • CRI 95+ for museums, galleries, and premium displays

Applications of COB LED Strip Lights

Residential Lighting

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Common uses include:

  • Under-cabinet lighting

  • Kitchen lighting

  • Bedroom accent lighting

  • Closet illumination

  • Staircase lighting

  • TV backlighting

Commercial Lighting

COB LED strips are widely used in:

  • Retail stores

  • Shopping malls

  • Hotels

  • Restaurants

  • Offices

  • Exhibition displays

Architectural Lighting

Their seamless light output makes them ideal for:

  • Cove lighting

  • Ceiling lighting

  • Wall washing

  • Shelf lighting

  • Luxury interior projects

Benefits of COB LED Strip Lights

Better Visual Comfort

The continuous light source reduces harsh glare and improves viewing comfort.

Superior Aesthetics

COB strips create a modern, elegant lighting effect suitable for premium installations.

Improved Uniformity

Even in shallow aluminum channels, COB strips provide smooth illumination without visible dots.

Long Lifespan

Quality COB LED strips typically last 30,000–50,000 hours, depending on operating conditions and thermal management.

Choosing the Right COB LED Strip

When selecting a COB LED strip, consider:

  • Brightness (lumens per meter)

  • Voltage (12V, 24V, or 48V)

  • Color temperature

  • CRI rating

  • Waterproof rating (IP20, IP65, IP67)

  • Power consumption

  • Installation length

For most commercial and architectural projects, 24V COB LED strips with CRI 90+ offer an excellent balance of efficiency, light quality, and installation flexibility.

COB LED strip lights are an advanced lighting solution that provides smooth, dot-free illumination through densely packed LED chips mounted directly on a circuit board. Compared with traditional SMD LED strips, COB technology offers better light uniformity, lower glare, and a more professional appearance. Whether used for residential accent lighting, commercial displays, or architectural projects, COB LED strips deliver high-quality, visually appealing illumination that enhances any space.


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