COB 3mm 400LED DC12/24V CRI90 Ultra-Slim LED Strip

Ultra-Slim 3mm PCB for Narrow Installations

This is one of our narrowest COB LED strips, designed specifically for installations where standard 8mm or wider strips simply don’t fit. At just 3mm wide, it opens up installation possibilities in slim aluminum profiles, tight furniture grooves, and narrow architectural reveals. Industry narrowest COB strip for tight installation spaces.

This strip is ideal for:

• Kitchen cabinets, display cases, furniture accent lighting, and under-shelf illumination
• Aluminum profile installations, ceiling details, and architectural feature lighting
• Hotel corridors, lobbies, guest rooms, and cove lighting applications
• Commercial cove lighting, office ambient lighting, and general business environments

Why Ultra-Narrow 3mm PCB?

At just 3mm wide, this is one of the slimmest COB LED strips available. The ultra-narrow PCB opens up installation possibilities impossible with standard 8mm or 10mm strips — slim aluminum profiles, narrow furniture grooves, picture frame edges, and tight architectural reveals.

If your installation space is under 5mm wide, this is often the only COB option that will fit. For wider installations, our standard 8mm strips offer better value and higher brightness.

Technical Specifications Explained

Lumen Output (770 lm/m): At 7W/m with 100-110 lm/W efficacy, this strip delivers approximately 770 lumens per meter — suitable for accent and decorative lighting.

CRI RA90: The high CRI rating means colors appear natural and accurate under this light — important for retail, hospitality, and any space where appearance matters to end users.

DC12V/24V: Dual voltage design supports both DC12V and DC24V with the same PCB. DC24V is recommended for runs over 3 meters due to lower voltage drop and reduced current draw.

Honest Positioning in Our COB Range

To help you make the right choice:

Model Type	Power	Best For
Slim 3mm/5mm	7-8 W/m	Narrow spaces, accent lighting
Standard 8mm 320-480 LED	10-12 W/m	General commercial use
Double-row 12mm	20 W/m	Bright cove and wall washing
Ultra-high 30mm	40 W/m	Fluorescent replacement

This product positioning: Specialty — Specialty product for specific use cases.

Installation Best Practices

• Aluminum profile recommended for runs over 2 meters (heat dissipation)
• Match driver at 1.2× load — provides safety margin
• Use DC24V for runs over 3 meters (reduced voltage drop)
• Cut only at marked points — 25mm for 12V, 50mm for 24V
• Clean surface before applying 3M VHB adhesive backing

Packaging and Shipping

• Reel length: 5M/10M per reel
• Master carton: 500 meters per carton
• Container capacity: approximately 60,000 meters per 20ft container
• Anti-static packaging with moisture absorbers protects COB chips during transit
• Clear batch labeling for traceability and color bin matching