COB (Chip-on-Board) LED strips have taken the lighting industry by storm in recent years — but how do they compare to traditional SMD LED strips? In this guide, we break down the key differences to help you choose the right technology for your project.
What Is an SMD LED Strip?
SMD stands for Surface Mounted Device. SMD LED strips feature individual LED packages — such as SMD2835, SMD5050, or SMD3838 — soldered at regular intervals onto a flexible PCB. When lit, you can see discrete points of light along the strip.
Common SMD types:
- SMD2835 — Most popular for white light. High efficiency, available up to 160LM/W+.
- SMD5050 — Larger chip, ideal for RGB color-changing strips (3 chips in one package).
- SMD3838 — High-power RGB chip with excellent color saturation.
- SMD2216 — Ultra-slim, used for narrow strips (4mm–5mm width).
What Is a COB LED Strip?
COB stands for Chip-on-Board. Instead of individual LED packages, hundreds of tiny LED chips are mounted directly onto the PCB in a continuous line, then covered with a phosphor layer. The result is a perfectly uniform, dot-free light line.
COB LED strips typically feature 300 to 840+ chips per meter, creating a seamless linear light effect that’s impossible to achieve with standard SMD strips.
COB vs SMD LED Strip: Side-by-Side Comparison
| Feature | COB LED Strip | SMD LED Strip |
|---|---|---|
| Light Appearance | Perfectly dot-free, continuous line | Visible individual dots |
| LED Density | 300–840+ chips/m | 60–240 LEDs/m |
| Efficiency | Up to 140–160 LM/W | Up to 160–207 LM/W |
| Color Options | White (single CCT or tunable); RGB COB available | White, RGB, RGBW, RGBCCT, full spectrum |
| Dimming | Excellent (smooth, flicker-free) | Good (depends on driver quality) |
| Heat Dissipation | Good (distributed across PCB) | Excellent (larger individual packages) |
| Price | Moderate to Premium | Economy to Premium |
| Best Use Cases | Architectural, display, premium linear lighting | General, decorative, color-changing applications |
When to Choose COB LED Strips
Choose COB LED strips when:
- You need a completely seamless, dot-free linear light effect
- The strip will be viewed at close range (display cases, cove lighting, shelf lighting)
- You’re working on premium architectural or hospitality projects
- Smooth dimming without flicker is critical
- You want a clean, modern, high-end appearance
When to Choose SMD LED Strips
Choose SMD LED strips when:
- You need RGB or full-color changing capability
- The strip is hidden behind diffusers or indirect lighting applications
- You require ultra-high efficiency (SMD2835 tops 207LM/W)
- Budget is a primary concern
- You need very long runs (48V SMD strips can run 15–20m without voltage drop)
RGB COB LED Strips: The Best of Both Worlds
Good news for those who want dot-free light AND color-changing capability: RGB COB LED strips now combine COB technology with RGB color output. YIZEE Lighting supplies RGB COB strips with up to 840 chips/m in RGB+CCT configurations, delivering stunning color performance with zero hotspots.
YIZEE Lighting COB LED Strip Range
YIZEE Lighting manufactures a comprehensive range of COB LED strips, including:
- 5mm narrow COB strips — 504 chips/m, 6W/m, CRI>90
- 8mm COB strips — 480 chips/m, 9.6W/m, available in 3000K–6000K
- RGB COB — 320 chips/m, 9.6W/m, dot-free color changing
- RGB+CCT COB — 840 chips/m, 21W/m, full color + tunable white
All our COB LED strips are available with OEM/ODM customization and competitive factory-direct pricing. Request a free sample today.