Slim COB Strip Manufacturer | Ultra Narrow Dotless COB LED Strip

Xmart Slim COB Strip Manufacturing Facility

Slim COB Strip Supplier & Manufacturer

Xmart provides end-to-end support for Slim COB Strip development and mass production. From ultra-narrow PCB layout to COB encapsulation, cut length, CCT consistency and connector matching, our engineering team helps lighting brands, furniture manufacturers, distributors and project buyers build compact dotless lighting solutions.

Ultra-Narrow COB Engineering

Support 2.7mm, 3mm, 4mm and 5mm slim PCB designs for compact installations.

Dotless Light Output

Continuous COB phosphor surface for smooth linear light in visible narrow spaces.

OEM / ODM Support

Custom PCB width, voltage, wattage, CCT, CRI, cable, connector, reel length and packaging.

Project Supply Support

Stable production and repeat-order consistency for furniture, display and architectural projects.

What Is a Slim COB Strip?

A Slim COB Strip is an ultra-narrow dotless LED strip made with chip-on-board technology on a very slim flexible PCB. It is designed for compact lighting spaces where standard-width COB strips cannot fit, such as narrow aluminum profiles, shelf grooves, display cabinets, mirror edges and furniture details.

Slim COB Strip is not only about being smaller. The product must balance PCB width, heat dissipation, cut length, cable connection, brightness and installation space to keep stable performance in narrow structures.

2.7mm / 3mm / 4mm / 5mm Dotless COB Output Ra≥90 Narrow Profile Ready

Cross-section comparison: Slim COB fitting seamlessly into a 4mm furniture groove.

Why Slim COB Strip Needs Special Design

When the PCB becomes narrower, the available space for copper, solder pads, circuit layout and heat dissipation becomes more limited. Slim COB strips must be engineered carefully so they can fit narrow spaces while maintaining stable light output and reliable installation.

Narrow PCB Layout

Designed for slim channels and compact lighting grooves with optimized internal circuitry.

Dotless COB Surface

Avoids visible LED dots even in close-view installations, providing premium light quality.

Connection Planning

Slim PCB requires special precision soldering or customized micro-connector designs.

Thermal Control

Narrow strips need proper mounting surface or profile support to ensure longevity.

Slim COB Strip vs Standard COB Strip

Comparison Items	Slim COB Strip	Standard COB Strip
Main Value	Fits narrow grooves and compact profiles	General dotless linear lighting
PCB Width	2.7mm / 3mm / 4mm / 5mm reference options	Usually 8mm / 10mm / 12mm
Installation Space	Very limited spaces	Standard profiles and coves
Light Effect	Dotless narrow light line	Dotless wider light line
Buyer Concern	Width, heat, cable, connector and brightness balance	CCT, CRI, wattage and installation
Best For	Shelves, cabinets, mirror edges, narrow profiles	Coves, furniture, general architectural lighting

Conclusion: Choose Slim COB Strip when installation width is the main limitation. Choose standard COB Strip when there is enough space and higher power or easier connection is preferred.

Slim COB Strip vs Mini-Cut COB Strip

Comparison Items	Slim COB Strip	Mini-Cut COB Strip
Main Focus	Narrow PCB width	Short cut length
Best For	Narrow channels, shelves, furniture grooves	Projects needing very precise length adjustment
Typical Buyer Question	Will the strip fit the profile?	Can I cut it to the exact length?
Can They Overlap?	Yes, some slim COB strips may also have short cut length	Yes, if designed with narrow PCB

Conclusion: Slim COB Strip solves width limitations. Mini-Cut COB Strip solves length precision. Buyers should confirm both PCB width and cut length before sampling.

Slim COB Strip vs Side Emitting LED Strip

Comparison Items	Slim COB Strip	Side Emitting LED Strip
Light Direction	Front-facing light output	Side-facing light output
Main Use	Narrow front-view linear lighting	Edge lighting, side glow and special profile directions
Visual Effect	Dotless COB line from the top surface	Light emits from the strip side
Best For	Narrow profiles, shelves, mirror edges, display grooves	Signage edges, ultra-thin side-lit structures
Buyer Concern	PCB width and profile fit	Light direction and bending direction

Conclusion: Choose Slim COB Strip when the light should emit forward from a narrow surface. Choose Side Emitting LED Strip when the project requires side-direction light output.

Slim COB Strip Specifications

Reference technical parameters for Xmart narrow board COB series.

Product Type Slim COB Strip

LED Type COB

Reference LED Density 400 LEDs/m

Voltage 5V reference option

PCB Width 2.7mm / 3mm / 4mm / 5mm

Reference Power 5.5W/m / 8W/m

Cut Length 10mm reference option

CRI Ra≥90

CCT Options 3000K / 3500K / 4000K / 6000K

Light Output Continuous dotless linear light

Waterproof Option IP20 or project-specific coating option

Cable & Connector Custom cable and slim connection options

OEM Support PCB width, wattage, CCT, CRI, cable, connector, reel length, label and packaging customization

* Note: Reference values are based on supplied COB catalog information. Final voltage, wattage, lumen output, connection method and thermal performance should be confirmed by Xmart datasheet and sample testing.

Slim COB Strip Product Options

2.7mm / 3mm Slim COB Strip

Ultra-narrow COB strip option for the smallest grooves, compact furniture structures, display shelves and mini profile lighting. Perfect for invisible integrations.

Reference Specs:

5V, 400 LEDs/m, 2.7mm / 3mm PCB, 5.5W/m, 10mm cut length, Ra≥90, 3000K / 3500K / 4000K / 6000K.

4mm / 5mm Slim COB Strip

Slim COB option for narrow aluminum profiles, cabinet edges, mirror edges and linear detail lighting where slightly more width is available. Balances size and performance.

Reference Specs:

5V, 400 LEDs/m, 4mm / 5mm PCB, 8W/m, 10mm cut length, Ra≥90, 3000K / 3500K / 4000K / 6000K.

Where to Use Slim COB Strip

Shelf Lighting

Narrow dotless light lines for shelves, bookcases and display racks.

Display Cabinet Lighting

Smooth COB light output for jewelry, cosmetics, wine cabinets and retail displays.

Furniture Groove Lighting

Slim PCB design for wardrobes, panels, drawers and built-in furniture grooves.

Mirror Edge Lighting

Compact white light line for mirror frames, vanity mirrors and decorative edges.

Mini Aluminum Profiles

Designed for profiles where standard 8mm or 10mm COB strips cannot fit.

Architectural Detail Lighting

Fine linear light accents for stairs, wall details, ceilings and narrow decorative lines.

Slim COB Strip Installation and Connection Diagram

Slim Strip → Profile → Diffuser

1. Narrow Profile Installation

Slim COB Strip → Mini Aluminum Profile / Furniture Groove → Diffuser or Open Light Line

Note: Confirm inner profile width, strip width, adhesive surface and heat dissipation before sampling.

12/24V Driver → V+ / V- → Strip

2. Basic Wiring

12/24V LED Driver → Slim COB Strip (Labels: V+ / V-)

Note: Confirm voltage, total wattage, cable length and voltage drop for low-voltage slim strips.

Cut → Solder/Connect → Test

3. Cut and Connect

Cut at Marked Point → Solder Cable or Use Matched Slim Connector → Test Before Installation

Note: Because slim PCB has limited pad area, connection method should be confirmed before bulk production.

Not Just Narrow. A Complete Slim Lighting System.

A Slim COB Strip should not be selected alone. It must match the profile size, driver voltage, wattage, cable length, connector, mounting surface, heat dissipation and real installation space.

Profile Matching

Confirm inner channel width and available installation space.

Driver Matching

Confirm 5V output, total wattage and safety margin.

Connection Matching

Confirm soldering, connector type, cable direction and pad size.

Thermal Matching

Use aluminum profile or metal mounting surface when needed.

Brightness Matching

Confirm target brightness before choosing PCB width and wattage.

Cut Length Matching

Confirm 10mm reference cut length or project-specific requirement.

Custom Slim COB Strip for OEM / ODM Projects

Custom PCB Width

2.7mm, 3mm, 4mm, 5mm or project-specific slim PCB design.

Custom Voltage

5V reference option, with other voltage designs evaluated by project.

Custom Wattage

Balance brightness, heat and narrow PCB structure.

Custom CCT

3000K, 3500K, 4000K, 6000K or project-specific white light.

Custom CRI

Ra80, Ra90 or higher CRI by application needs.

Custom Cable Direction

Front cable, side cable, back cable or project-specific cable exit.

Custom Connector

Slim connector or soldered cable solution for narrow installation.

OEM Packaging

Private label, reel label, datasheet, carton and brand packaging support.

What Buyers Should Confirm Before Sampling

What is the available installation width?

Is 2.7mm, 3mm, 4mm or 5mm PCB required?

What profile or groove will be used?

What voltage is required?

What wattage and brightness are needed?

What CCT and CRI are required?

How will the strip be connected?

Is soldering or connector assembly preferred?

What cable exit direction is needed?

Is the installation open or enclosed?

Is waterproof coating required?

Is OEM packaging required?

Common Problems in Slim COB Strip Projects

Problem

Strip does not fit the profile

Solution:

Confirm actual inner width of the profile or groove before sampling. Do not rely solely on external dimensions.

Problem

Connection is difficult on narrow PCB

Solution:

Confirm solder pad size, cable direction and connector solution before production. Factory pre-soldering is recommended.

Problem

Brightness is not enough

Solution:

Confirm wattage, lumen target and available thermal path before choosing PCB width. Narrower PCBs typically handle less power.

Problem

Strip overheats in enclosed groove

Solution:

Use an aluminum profile, metal mounting surface or select a lower power design to ensure heat dissipation.

Problem

Voltage drop appears on longer low-voltage runs

Solution:

Plan cable length, power feed points (feed from both ends if necessary) and driver placement before installation.

Problem

Cut length does not match furniture size

Solution:

Confirm the 10mm reference cut length and final installation dimension before sampling to avoid dark spots at the ends.

Related Products for Compact Linear Lighting

COB LED Strip

Parent category for dotless COB strip options.

Ultra Narrow LED Strip

For narrow installation projects using compact formats.

Mini-Cut LED Strip

For projects requiring very short cutting intervals.

Side Emitting LED Strip

For projects needing side-direction light output.

Cabinet LED Strip

For furniture, cabinet and shelf lighting applications.

LED Aluminum Profile

For mounting, heat dissipation and clean installation.

LED Driver

Provides stable low-voltage power for slim COB systems.

LED Connector

Supports clean wiring when compatible with slim PCB.

FAQ About Slim COB Strip

What is a Slim COB Strip?

A Slim COB Strip is an ultra-narrow dotless LED strip designed for compact lighting spaces where standard-width COB strips cannot fit. It typically features a PCB width of 2.7mm, 3mm, 4mm, or 5mm, providing smooth linear light for narrow profiles and grooves.

How is Slim COB Strip different from standard COB Strip?

The primary difference is the PCB width. Standard COB strips are usually 8mm or 10mm wide, while slim versions are engineered down to 2.7mm to 5mm. This requires specialized thermal management and precise connection methods for narrow installations.

What PCB widths are available for Slim COB Strip?

Standard reference options for Slim COB Strips include 2.7mm, 3mm, 4mm, and 5mm PCB widths. These sizes accommodate various narrow aluminum profiles, shelf details, and furniture grooves. Custom widths can be discussed for OEM projects.

Is Slim COB Strip the same as Mini-Cut COB Strip?

No. Slim COB focuses on a narrow PCB width for tight spaces, while Mini-Cut COB focuses on extremely short cutting intervals for precise length adjustments. However, some slim strips do incorporate short cut lengths (e.g., 10mm) to maximize flexibility.

When should I choose Slim COB Strip instead of Side Emitting LED Strip?

Choose a Slim COB Strip when you need front-facing light emitting directly from the narrow top surface. Choose a Side Emitting Strip when your installation requires the light to project sideways from the edge of the PCB.

Can Slim COB Strip be used in aluminum profiles?

Yes. In fact, using them in mini aluminum profiles is highly recommended. The profile provides a clean aesthetic, protects the narrow strip, and importantly, acts as a heat sink to maintain thermal stability.

Can Slim COB Strip be cut?

Yes, they can be cut at designated copper pad marks. A common reference cut length is 10mm, but you must check the specific datasheet. Due to the small pad size, cutting and soldering require precision.

What voltage is commonly used for Slim COB Strip?

5V is a common reference option for ultra-narrow strips to manage heat and circuit design on a very small PCB. Other voltages may be available depending on the specific width and project requirements evaluated by our engineers.

Is Slim COB Strip bright enough for cabinet lighting?

Yes. With reference power options like 5.5W/m or 8W/m, they provide excellent accent and task lighting for cabinets, shelves, and display cases while maintaining a dotless appearance.

Can Xmart customize Slim COB Strip for OEM projects?

Absolutely. Xmart supports extensive OEM/ODM customization, including specific PCB widths, wattage, CCT, CRI, pre-soldered cables, specialized connectors, and custom packaging.

Need a Slim COB Strip for Your Narrow Lighting Project?

Tell us your available installation width, PCB width requirement, voltage, wattage, CCT, CRI, profile size, cable direction, connector preference and OEM packaging needs. Xmart can help configure a reliable Slim COB Strip solution for your compact lighting project.

tenly@xmartlighting.com

18520999956

Pho Yen City, Thai Nguyen Province, Vietnam (Vietnam Factory)

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