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Cuttable COB

HST-COB400 COB LED Strip 400LEDs/m Ultra-Slim 3mm

Ultra-slim 3mm COB LED strip with 400 LEDs/m for the narrowest profiles. 7W/m power with 10mm/20mm micro-cutting and CRI 90+ dot-free output.

Specifications

Model
HST-COB400
LED Type
COB
LED Density
400 LEDs/m
400 LEDs/m
3 mm
Voltage
12V / 24V DC
Power
7 W/m
Color Temperature
2700K / 3000K / 4000K / 6500K
CRI
Ra 90+
IP Rating
IP20
Cutting Unit
10 mm / 20 mm
HST-COB400 is a 3mm ultra-slim COB LED strip delivering 400 LEDs/m on the narrowest commercially available flexible PCB — engineered for lighting designers who need dot-free illumination inside profiles where standard 8mm strips physically cannot fit.

Key Specifications

Parameter
Value
Model
HST-COB400
LED Type
COB
LED Density
400 LEDs/m
PCB Width
3 mm
Voltage
12V / 24V DC
Power
7 W/m
Color Temperature
2700K / 3000K / 4000K / 6500K
CRI
Ra 90+
IP Rating
IP20
Cutting Unit
10 mm / 20 mm
Beam Angle
180°
Lifespan
50,000 hours
Selection Tip: Use with 4mm–6mm internal-width aluminum profiles. For outdoor or wet-area projects, request our IP-rated narrow COB variants.

Why Choose HST-COB400

  • 3mm narrowest width — fits inside 4mm and 6mm aluminum profiles where no other COB strip can go
  • 400 LEDs/m dot-free output — maintains continuous, seamless illumination despite extreme miniaturization
  • 10mm/20mm micro-cutting — precision trimming to exact length without dark gaps at profile ends
  • Tighter bending radius — the 3mm PCB flexes more easily into tight curves and radiused profiles than wider alternatives
  • CRI 90+ color rendering — accurate color representation even at this compact form factor

Typical Applications

  • Under-cabinet kitchen lighting in narrow 6mm profiles
  • Furniture-integrated lighting (bed frames, shelving, wardrobe interiors)
  • Glass shelf edge lighting in retail display cases
  • Curved architectural details with tight bending radii
  • Miniature signage and channel letter backlighting

Quality & Trust

The HST-COB400 uses the same premium COB phosphor technology as HSTLight's standard-width strips, ensuring spectral consistency across the product family. CE and RoHS certified.

Get a Quote

Working with tight-space constraints? contact us with your profile dimensions and quantity. Request a sample to verify the perfect fit in your aluminum channel.

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