1. What Is a COB LED Strip?
COB (Chip-on-Board) LED strips provide superior brightness and uniform light compared to traditional SMD strips. They are widely used in commercial, industrial, and residential lighting due to their high efficiency, smooth light output, and durability.
2. 30mm COB LED Strip vs 8mm/10mm/15mm: Key Differences
| Feature | 30mm COB LED Strip | 8mm/10mm/15mm COB Strips |
|---|---|---|
| Brightness | Higher lumen output (up to 3000LM/m) | Lower brightness (typically 800-1500LM/m) |
| Heat Dissipation | Better cooling (30%+ larger surface) | Requires heat sinks for high-power use |
| Flexibility | Rigid, best for straight runs | More flexible, ideal for curves |
| Applications | Industrial, retail, high-bay lighting | Home decor, cabinet lighting |
Why Choose 30mm COB Lights?
✔ Higher power handling (up to 30W/m)
✔ No visible light dots (perfect for high-end displays)
✔ Longer lifespan (better heat management)
3. Where to Use 30mm COB LED Strips?
- Retail Lighting (jewelry stores, luxury boutiques)
- Industrial Lighting (warehouses, factories)
- Photography & Studio Lighting (soft, shadow-free light)
- Architectural Lighting (facades, cove lighting)
4. Voltage Options: 12V/24V vs 110V/220V
- 12V/24V → Best for most applications (safer, better efficiency)
- 110V/220V → Rare, only for long runs without cutting (higher risk)
| Voltage | Scenarios | 30mm Strip Configurations |
|---|---|---|
| 12/24V | ◉ 99% of 30mm strips use low-voltage DC ◉ Safe for metal/humid environments | ◉ 24V preferred (longer runs, less voltage drop) ◉ Mandatory for >20W/m |
| 110/220V | ◉ Rare (custom order only) ◉ Safety risks, not recommended | ◉ Only for uncut full-reel projects |
5. How to Cut & Install 30mm COB Strips?
Cutting Guide
✂ Cut only at marked points (usually every 50mm/100mm)
⚡ Use heavy-duty scissors (thicker PCB than narrow strips)
Recessed Installation
| Method | 30mm-Specific Solutions | General Tips |
|---|---|---|
| Aluminum Channel | ◉ Essential! Use ≥30x30mm U-channel | ◉ Narrow strips may skip channels (low power) |
| Corners | ◉ Use wide-angle connectors (no sharp bends) | ◉ Narrow strips bend at 90° freely |
| Mounting | ◉ 3M VHB tape + clips for dual security | ◉ Narrow strips: adhesive backing suffices |
Installation Tips
✔ Must use aluminum channels (prevents overheating)
✔ Avoid sharp bends (use wide-angle connectors)
✔ Secure with clips + adhesive (3M VHB tape recommended)
6. Conclusion: Which COB LED Strip Is Right for You?
- 30mm COB strips → High-power, commercial/industrial use
- 8mm/10mm/15mm → Decorative, flexible lighting
For longer lifespan and better performance, always pair with a high-quality LED driver.
References & Further Reading
- LEDs Magazine: COB Technology Explained
- DigiKey: Choosing the Right LED Strip
- Philips Lighting: COB vs SMD LEDs
- Energy.gov: LED Strip Efficiency
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