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4mm cob led strip
4mm COB LED Strip - Ultra Thin High Brightness COB LED Tape | LEMON LED

Core Specifications of 4mm COB LED Strip

ParameterProduct NamePower Per MeterAvailable ColorsLuminous EfficacyInput VoltageLED DensityPCB WidthCRI (Color Rendering Index)Waterproof GradeHousing MaterialDimmableLifespanRoll LengthCuttableCertificationWarrantyMOQOEM/ODM Support
Specification4mm COB LED Strip3.7W, 5W, 6W, 7W, 8WRed, Green, Blue, Pink, Purple, AmberWhite: 2200K, 2700K, 3000K, 3500K, 4000K, 6000K, 6500K70–90 lm5V DC / 12V DC / 24V DC 400LEDs/m, 480LEDs/m, 4mm≥90Ra (High CRI Option: ≥95Ra)IP20, IP44, IP65, IP67, IP68High-Quality PCB + Silicone / ABS (Customizable)Yes (Compatible with PWM Dimmers/Controllers)≥50,000 Hours5m/roll, 10m/roll, 20m/roll (Customizable for High Voltage)10mm cuttable / arbitrary cuttingCE, RoHS,  (Customizable for Different Markets)3-5 Years (Depends on Product Grade)1 Roll (Sample Available), Bulk Order MOQ: 100 RollsYes (Custom Voltage, Color, PCB, Waterproof, Length, Logo Printing)
  • Slim Profile for Versatile Installation
    This LED strip features a 4mm edge-free design, making it suitable for narrow gaps and discreet installations where space is limited.
  • High Brightness & Uniform Output
    Equipped with 480 LEDs per meter, the strip provides consistent luminous performance with high efficiency, ensuring reliable illumination for long-term use.
  • Dotless Glow for Comfortable Viewing
    The COB LED strip lighting seamless light diffusion eliminates visible dots and harsh glare, delivering a comfortable lighting experience for both commercial and residential environments.
  • Safe & Easy Installation
    Supports DC 5V, 12V and 24V low-voltage operation for enhanced safety. The self-adhesive backing allows quick and secure mounting on clean, dry surfaces.
  • Customizable Cut Length
    With cutting points available at 10mm, 25mm and 50mm intervals, the strip can be adjusted to fit exact project dimensions and layout requirements.
  • Energy Efficient Performance
    Each 5-meter roll consumes just 5W per meter, with a luminous efficiency of 80–90lm/W, helping reduce energy costs while maintaining high-quality lighting.
  • Wide Range of Applications
    Designed for versatile use in ceiling lighting, stair illumination, mirror backlighting, TV ambient lighting, automotive applications and various
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4mm COB LED Strip Applications

  • 4mm cob led strip for ceiling

    Warm white led strip 12v in 2200K, 2400K or 2700K is highly recommended.
    Our 4mm COB LED Strip delivers perfect ceiling lighting that creates a warm, home-like atmosphere.

  • 4mm cob led strip for closet

    This 4mm cob led strip 6000K is ideal for use as wardrobe led strip lights.
    It can be equipped with a motion sensor for added convenience, offering soft, bright and pleasant illumination.

  • 4mm cob led strip for bedroom

    High quality LED light strips 3000K for bedroom, creating a cosy atmosphere when installed under the bed. The soft glow of this 4mm COB dotless LED strip light flows like a gentle breeze, helping you enjoy sweet dreams.

4mm COB LED Strip Key Advantages

Micro LED Strip
Ultra Thin & High Flexibility for Limited Spaces

This 4mm COB LED strip comes with a slim integrated design and offers better flexibility than regular SMD strips. Its small size works well for tight installations such as mirror backlighting, stair lighting, TV ambient lighting and car interior projects where thicker strips are not suitable.
Made with pure silicone, the strip is more durable and flexible enough to be shaped around curved or uneven surfaces for commercial lighting applications.

4mm cob led strip flexible
4mm cob led strip high density
Seamless LED Strip
Dotless Seamless Lighting for Eye Comfort

This 4mm COB LED strip uses 480 LEDs per meter to deliver soft, even dotless lighting without harsh glare.
It stays comfortable for long hours of use, making it great for offices, retail spaces, hotels and commercial projects that need bright, eye-friendly lighting.

LED Strip Light Channels
Compatible with Aluminum LED Strip Lighting Channel for Professional Installation

This 4mm COB LED strip fits well in standard aluminum channels for easy and stable installation. When used with LED diffuser channels, it provides softer, professional lighting and reduces light spots, leaving a clean seamless finish for high-end commercial projects including shopping malls and office interiors.

4mm cob led strip with aluminum profile
4mm cob led strip colorful
Multi Coloured Strip Lights
COB Multicolor LED Strip Lights

We focus on manufacturing multicolor LED strip lights for various lighting applications. Custom specifications are available to fit different project needs.
Our IP20 strips are ideal for indoor lighting projects, while IP65 and IP68 rated strips can be used outdoors for all-weather installations.

LEMON – Leading LED Strip Manufacturer in China. 3-Year Warranty. Request Your Quote Today!

COB LED STRIP Manufacturer
COB LED Strip Manufacturer
COB LED Strip wire soldering
COB LED Strip Wire Soldering
COB LED Strip Quality Test
COB LED Strip Quality Testing
Q1: What makes 4mm COB LED strip different from regular COB strips?

A: Our 4mm COB LED strip comes with an ultra-slim design that fits into very narrow installation spaces where standard 8mm or 10mm COB strips won’t work.
It keeps high brightness and dotless lighting while taking up little space, making it perfect for slim and minimalist lighting designs.

Q2: Can 4mm COB LED strip be used for both indoor and outdoor projects?

A: Standard 4mm COB LED strip is IP20 rated for indoor use only. For outdoor, wet or humid locations, we provide custom IP65 and IP68 waterproof versions with fully sealed silicone coating, protecting against dust, moisture and harsh outdoor conditions.

Q3: What is the maximum run length without visible voltage drop?

A: For 12V 4mm COB LED strip, we recommend a maximum single run of 5 meters. For 24V versions, each section can be extended to 10 meters with no obvious voltage drop. For longer installations, extra power injection points are needed to ensure stable performance.

Q4: Is the 4mm COB LED strip truly dotless and glare-free?

A: Yes. With 480 LEDs per meter and uniform COB lighting technology, our 4mm COB strip delivers fully seamless, dotless illumination with no visible light spots.
It is widely used in high-end commercial and residential projects that demand soft, consistent lighting.

Q5: Do you offer high CRI options for 4mm COB LED strip?

Absolutely. We provide custom high CRI versions (CRI>90) for retail displays, galleries, jewelry cabinets, and hotel lighting projects that demand accurate color representation and professional lighting quality.

Q6: Can the 4mm COB strip be cut and reconnected?

A: The 4mm COB LED strip can be cut accurately at marked points — available in 10mm, 25mm and 50mm intervals.
3mm and 4mm COB LED strips have no connectors yet, but 5mm COB LED strips have all types of 5mm LED strip connector.

Q7: What power supply should I use for 4mm COB LED strip?

We always recommend using a stable DC power supply with at least 20% power redundancy to avoid overload and extend service life.
For a standard 5m roll, 12V 60W or 24V 60W power supplies are the most common choices.

Q8: Do you provide samples for project testing before bulk orders?

A: Yes, we encourage clients to request 1–2 samples first to test brightness, color consistency, size fit, and overall performance. Sample orders are welcomed and typically shipped within 1–3 working days.

Q9: What is the typical lifespan and warranty of your 4mm COB LED strip?

A: Our 4mm COB LED strip has a service life of over 50,000 hours under normal operation.
We offer a full 3-year manufacturer warranty against quality issues with the chips, circuits and lighting performance.

Q10: What is your MOQ and production lead time for 4mm COB strip?

A: Our standard MOQ for 4mm COB LED strip is 100 meters.
Mass production lead time is usually 7–10 working days for standard items, and 10–15 working days for custom versions such as waterproof, CCT or customized lengths.

Q11: Is 4mm COB LED strip compatible with slim aluminum channels?

A: Yes, this product is specially designed for ultra-slim aluminum profiles and LED light strip diffuser. It is an ideal lighting solution for slim linear lights, furniture lighting, mirror lighting and decorative trim lighting.

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