Core Specifications of 4mm COB LED Strip
| Parameter | Product Name | Power Per Meter | Available Colors | Luminous Efficacy | Input Voltage | LED Density | PCB Width | CRI (Color Rendering Index) | Waterproof Grade | Housing Material | Dimmable | Lifespan | Roll Length | Cuttable | Certification | Warranty | MOQ | OEM/ODM Support |
| Specification | 4mm COB LED Strip | 3.7W, 5W, 6W, 7W, 8W | Red, Green, Blue, Pink, Purple, AmberWhite: 2200K, 2700K, 3000K, 3500K, 4000K, 6000K, 6500K | 70–90 lm | 5V DC / 12V DC / 24V DC | 400LEDs/m, 480LEDs/m, | 4mm | ≥90Ra (High CRI Option: ≥95Ra) | IP20, IP44, IP65, IP67, IP68 | High-Quality PCB + Silicone / ABS (Customizable) | Yes (Compatible with PWM Dimmers/Controllers) | ≥50,000 Hours | 5m/roll, 10m/roll, 20m/roll (Customizable for High Voltage) | 10mm cuttable / arbitrary cutting | CE, RoHS, (Customizable for Different Markets) | 3-5 Years (Depends on Product Grade) | 1 Roll (Sample Available), Bulk Order MOQ: 100 Rolls | Yes (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
4mm COB LED Strip Applications
4mm COB LED Strip Key Advantages
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.


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.
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.


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.
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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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.






