COB LED Strip Lights vs SMD: Complete Comparison Guide for B2B Buyers
The LED strip lighting industry has undergone a major evolution. Chip-on-Board (COB) LED technology is rapidly gaining traction in commercial and residential projects worldwide. For B2B buyers and contractors, understanding the differences between COB and traditional SMD LED strips is essential.
What Is COB LED Technology?
COB LED strips feature multiple LED chips directly mounted on a substrate board, creating continuous, dot-free light output. Unlike SMD strips with spaced individual chips, COB strips pack hundreds of tiny chips into a dense line, producing smooth uniform illumination without hotspots.
COB vs SMD: Key Specifications
| Parameter | COB LED Strip | SMD LED Strip |
|---|---|---|
| Chip Density | 300-600+/meter | 60-120/meter |
| Beam Angle | 180° | 120° |
| Dot-Free | Yes, no diffuser needed | Needs diffuser |
| CRI | 90+ | 80-95 |
| Bending Radius | 10mm min | 30-50mm |
| Efficiency | 100-140 lm/W | 80-160 lm/W |
| Cut Interval | 10-20mm | 25-100mm |
Why COB Strips Are Gaining Market Share
- Aesthetic Demand: Designers prefer seamless dot-free lighting for premium spaces
- Lower Installation Cost: No diffuser channels needed
- Tight Bending: Ideal for curved ceilings, arches, and custom furniture
- High CRI Standard: CRI 90+ meets hospitality and retail requirements
When SMD Strips Are Still the Better Choice
- Outdoor High-Power: IP67/IP68 SMD strips for facades and landscapes
- Long Runs: 24V/48V SMD strips handle 10m+ runs with less voltage drop
- Budget Projects: Lower cost per meter for large deployments
- RGB/Color-Changing: Mature SMD 5050 RGB technology
B2B Sourcing Checklist
- Request binning reports for consistent color temperature (±100K)
- Verify LM-80 data: 70%+ lumen maintenance at 50,000 hours
- Specify 3M VHB adhesive for reliable long-term bonding
- Require UL, CE, RoHS, DLC certifications
- Choose manufacturers with in-house R&D and OEM capability
BrightLink LED: Your COB & SMD Manufacturing Partner
BrightLink LED manufactures both COB and SMD LED strips with 10+ years of export experience. Our range includes COB strips (2700K-6500K, CRI90+, IP20-IP68), SMD 2835/5050/3528 options, tunable white and RGBW variants, plus custom lengths and packaging for OEM/ODM projects.
Contact BrightLink LED for samples, datasheets, and competitive B2B pricing.