High-Density 20W COB LED Strip for Professional Projects

Our COB LED Strip 20W is built for projects that demand smooth, dot-free illumination, stable performance, and long runs without uneven brightness. As a professional LED strip light manufacturer in China, VST Lighting supplies high-density linear lighting solutions for contractors, distributors, and OEM partners who care about quality consistency—not just price.

Whether you are upgrading from SMD strips or designing new architectural lighting, this 20W COB LED tape delivers uniform light, clean installation, and dependable output.

• Dot-free continuous light
• Stable 24V options available
• Flexible MOQ for B2B
• OEM branding support
• Fast production lead time

COB LED Strip Lighting Supplies – Reliable Partner for Contractors, Architects, and Resellers

If you are sourcing COB LED Strip 20W for distribution or project supply, you already know the common risks. Inconsistent brightness between batches. Voltage drop on long runs. Overheated PCB causing early failure. Suppliers promising specs they cannot prove.

We designed this 20W COB LED strip to solve those exact issues.

The high-density chip-on-board structure creates a continuous line of light—no visible dots even in shallow aluminum profiles. That means cleaner architectural results for retail shelves, hotel coves, and furniture integration. The optimized copper PCB and balanced circuit layout help control temperature rise, which directly reduces lumen depreciation over time.

But performance claims mean nothing without verification.

In our Shenzhen factory, our engineers test each production batch with an integrating sphere to confirm lumen output and color consistency. We simulate long-run installations in-house to evaluate voltage drop across extended lengths. If you need specific CCT tolerance, CRI level, or power per meter, we confirm it before shipment—not after you receive complaints.

COB LED Strip 20w Productions lines

For electrical contractors, this means fewer callbacks. For wholesalers and importers, it means stable quality across repeat orders. For OEM buyers, it means we can adjust soldering length, input cable type, adhesive backing, or even private label packaging with flexible MOQ.

We are not a trading company. We are a COB LED strip factory with 15 years of LED manufacturing experience and a stable production team. Most regular orders ship within 2–3 weeks, with transparent production updates.

If you are comparing LED strip suppliers in China, request a technical datasheet or ask for a sample kit. Or discuss your project specs directly with our engineers—we will give you straight answers.

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COB LED Strip 20w Series

20W 24V COB LED Strip

High-density, dot-free linear lighting for profiles, ceiling coves, retail shelves, and furniture integration. Suitable for architectural indoor applications requiring clean, continuous light output.

20W 12V COB LED Strip

Ideal for shorter installations where frequent cutting intervals are required. Commonly used in cabinet lighting and compact decorative designs.

20W High CRI (Ra≥90) COB LED Strip

Designed for applications demanding accurate color rendering such as boutiques, art galleries, cosmetic displays, and premium residential lighting.

20W Waterproof COB LED Strip

Silicone-coated or sleeve-protected version suitable for damp environments, bathrooms, covered outdoor areas, and facade decorative lighting.

20W Tunable White COB LED Strip

Adjustable color temperature solution allowing dynamic ambiance control for smart lighting projects and high-end architectural applications.

20W Custom OEM COB LED Strip

Available with customized PCB width, input cable length, adhesive type, packaging, and private labeling to support distributors and OEM partners.

Highlighted Features of Our COB LED Strip 20w

Dot-Free Output
Dot-Free Output

High-density COB packaging creates a continuous, uniform light line with no visible LED points, even in shallow aluminum channels or direct-view architectural applications.

Stable Thermal Design
Stable Thermal Design

Optimized copper PCB and controlled current layout reduce heat buildup, supporting consistent lumen maintenance and longer service life in demanding installations.

Flexible Installation
Flexible Installation

Designed for easy cutting and field adaptation, this flexible LED ribbon integrates smoothly into profiles, coves, display shelves, and custom fixtures.

Customizable Options
Customizable Options

CCT range, CRI level, input voltage, IP rating, pre-soldered cables, and private labeling are available upon request for OEM and wholesale projects.

High-Density COB LED Chips

The core of a 20W COB LED strip is the chip-on-board array itself. We use high-density LED die arrangements to create a continuous phosphor-coated light surface. This eliminates spotting and reduces shadowing in linear applications. Chip selection may include branded or equivalent-grade LED sources depending on project specification. Tight binning control ensures color consistency between batches, which is critical for distributors supplying repeat commercial projects.

COB LED Chips
Thick Copper PCB

Thick Copper PCB

The printed circuit board directly affects voltage stability and heat dissipation. Our 20W COB LED strip typically uses reinforced copper layers (such as 2oz copper options available upon request). A thicker copper substrate reduces voltage drop over longer runs and improves current distribution. For contractors installing extended linear lighting, this translates into more uniform brightness and reduced overheating risk.

Adhesive Backing & Mounting Layer

Installation efficiency matters on site. We use industrial-grade adhesive backing suitable for aluminum profiles and smooth mounting surfaces. Strong adhesion prevents sagging over time, especially in warm environments like display cabinets or ceiling coves. For higher-temperature environments or custom installations, upgraded adhesive or mounting accessories can be specified.

Adhesive Backing & Mounting Layer
Protective Silicone

Protective Silicone

Depending on project requirements, silicone coating or sleeve protection is available to achieve higher IP ratings. This allows the COB LED tape to be used in damp areas such as bathrooms, covered outdoor areas, or decorative façade lighting. Protective layers are applied evenly to avoid color shift or lumen reduction.

Solder Pads & Connectors

Clean solder joints reduce resistance and long-term failure. Our production team, with an average of 7 years’ LED assembly experience, controls soldering temperature and inspection carefully. Pre-soldered power leads, custom cable lengths, or connector types can be prepared in-house to reduce installation time for contractors and OEM assembly lines.

Solder Pads & Connectors (1)

Shenzhen VST Lighting Co., Ltd. – Leading Manufacturer of Cob LED Strip in China

COB LED strip light manufacturer 2022
COB LED strip light production process

We encourage serious buyers to review our factory and project videos.

You can see the real production lines where COB LED strips are assembled, the aging racks where each batch runs under continuous load testing, and quality inspection procedures before packaging. We also share customer LED Panel light project feedback from retail stores, architectural lighting firms, and furniture manufacturers.

Transparency reduces sourcing risk. What you see in our videos reflects the same process used for your order.

Drivers and Aluminum Channels: Protecting Our COB LED Strip 20w

Driver for COB LED Strip 20W

Choosing the right driver for COB LED Strip 20W is critical for stable performance and long service life. A high-quality constant voltage LED driver ensures consistent current output, minimizes flickering, and protects the strip from overload or voltage spikes.

For most installations, 24V DC drivers are preferred to reduce voltage drop and maintain uniform brightness across longer runs.

When selecting a power supply for 20W COB LED strip lights, always calculate total wattage and add at least 20% headroom to prevent overheating.

Dimmable options such as 0–10V, TRIAC, or PWM drivers are available depending on your control system.

For commercial and architectural projects, using certified LED drivers with short-circuit and over-temperature protection improves reliability and reduces maintenance costs.

Matching the correct LED strip power supply ensures safe, efficient, and long-lasting linear lighting installations.

Aluminum Channels for 20w COB LED Strip

An aluminum profile for COB LED Strip 20W improves heat dissipation, protects the LED tape, and enhances overall lighting aesthetics.

Since high-density COB strips generate continuous light output, proper thermal management is essential.

Extruded aluminum channels act as heat sinks, reducing temperature rise and helping maintain lumen stability over time.

LED strip aluminum profiles are available in recessed, surface-mounted, corner, and suspended types, making them suitable for architectural linear lighting, under-cabinet illumination, and commercial display applications.

Pairing a COB LED strip with a diffuser cover—opal or frosted—creates smooth, glare-free illumination while shielding the strip from dust and physical damage.

For professional installations, selecting the correct aluminum channel size ensures secure mounting and long-term durability in residential and commercial lighting projects.

Application Scenarios of COB LED Strip 20w

Retail Display Shelves

The 20W COB LED strip provides uniform, dot-free linear illumination for retail display shelves, glass showcases, and product cabinets. High-density chip-on-board technology eliminates visible hotspots, even when installed inside shallow aluminum LED profiles with clear or frosted diffusers. This creates a clean lighting line that enhances product visibility and presentation quality. Jewelry stores, cosmetics counters, and electronics retailers benefit from consistent brightness and professional visual appeal. Stable color consistency across production batches is especially important for chain stores that require identical lighting effects across multiple branches and retail environments.

Hotel Cove Lighting

For hotel cove lighting and indirect ceiling installations, the COB LED strip produces a continuous, seamless light line that improves architectural atmosphere. Unlike traditional LED tape lights that show dotted pixels, the COB structure creates smooth ambient illumination ideal for premium hospitality interiors. It highlights ceiling contours and decorative moldings in lobbies, corridors, restaurants, and guest rooms. Multiple color temperature options allow designers to create warm relaxing environments or balanced neutral lighting depending on the interior concept. With 24V configurations available, longer cove runs maintain stable brightness and consistent visual performance.

Residential Ceiling Perimeter Lighting

In modern residential interiors, ceiling perimeter lighting is commonly used to create soft indirect illumination. The 20W COB LED tape produces a smooth glow inside gypsum ceiling recesses without the dotted effect typical of conventional SMD LED strips. Even light distribution prevents uneven shadows on painted surfaces and improves visual comfort throughout the room. This lighting approach is popular in living rooms, bedrooms, and apartments seeking minimalist architectural lighting. The flexible strip structure easily follows curved ceiling shapes while maintaining uniform brightness across long installation sections.

Furniture Integrated Lighting

Furniture manufacturers and cabinet makers increasingly integrate COB LED strips into wardrobes, display cabinets, and shelving systems. The flexible PCB structure allows installation inside narrow grooves, aluminum channels, or concealed cavities within wood furniture. Continuous ribbon lighting improves visibility inside cabinets while maintaining a refined and modern appearance. For OEM furniture production lines, pre-soldered wires and customized cable lengths simplify assembly and reduce installation time. The strip’s compact size and stable performance make it suitable for high-volume furniture manufacturing where reliability and visual consistency are essential.

Architectural Linear Profiles

Installed inside aluminum LED profiles with diffusers, the 20W COB strip delivers clean, professional linear lighting suitable for architectural projects. Offices, shopping malls, and commercial corridors benefit from smooth light distribution without visible LED dots or uneven brightness. The high-density chip arrangement ensures continuous illumination even when paired with clear diffusers. For longer installations, thicker copper PCB options help reduce voltage drop and maintain consistent brightness across extended runs. This makes the strip suitable for continuous linear lighting systems commonly used in modern architectural design.

Exhibition Booth & Showroom Lighting

Trade show booths and exhibition displays require lighting that highlights products clearly while maintaining a professional appearance. COB LED strips provide bright, continuous illumination without the pixelated effect often seen in traditional LED tapes. This smooth lighting line enhances branding panels, display racks, and product showcases. The flexible structure allows quick installation on temporary exhibition structures, reducing setup time for event contractors. Stable light output is important during long exhibition hours where consistent lighting quality helps maintain attractive product presentation throughout the entire event.

Kitchen & Under-Cabinet Lighting

For kitchen task lighting and under-cabinet installations, the 20W COB LED strip offers uniform surface illumination across countertops and workspaces. The dot-free light output improves visual comfort by reducing glare and eliminating dark spots that can occur with standard LED strips. This makes it easier to prepare food and perform kitchen tasks safely. Higher color rendering options are available upon request to enhance natural color appearance for ingredients and cooking surfaces. Installing the strip inside aluminum profiles improves heat dissipation and supports long-term lighting stability.

Indoor Decorative Accents

Decorative interior lighting often requires flexible light sources that produce smooth illumination along architectural details. The COB LED ribbon is ideal for wall niches, staircases, ceiling coves, and recessed decorative features. Its continuous light line creates a refined visual effect without visible LED points. The flexible structure allows easy adaptation to corners and curved surfaces commonly found in modern interior design. Both residential and commercial spaces benefit from this lighting approach, which provides elegant accent illumination while maintaining a clean architectural appearance.

OEM Equipment & Display Integration

Equipment manufacturers often integrate COB LED Tape strips into commercial machines, display racks, vending machines, and illuminated signage frames. The compact design allows installation in limited internal spaces where traditional lighting fixtures cannot fit. For OEM partners, customization options such as specific voltage configurations, wire lengths, connectors, and private labeling are available. These options help simplify integration into manufacturing processes and product assemblies. Stable performance supports long operating hours in professional equipment applications where reliable illumination and consistent brightness are required.

COB LED Strip 20w Supplier

COB LED Strip 20W Sourcing Guide for B2B Buyers

Professional sourcing guide for 20W waterproof  COB LED strip manufacturers and suppliers in China. Learn how to evaluate quality, voltage stability, thermal design, MOQ policy, and OEM support before placing bulk orders. Ideal for wholesalers, contractors, and lighting distributors seeking reliable factory partnerships.

Manufacturing Excellence and Installation Guidance for Cob LED Strips Light

Below is a Specification Sheet for COB LED Strip 20W presented in table format.
(Specifications may vary by configuration and are available upon request.)

COB LED Strip 20W – Specification Sheet

Parameter Specification
Product Name COB LED Strip 20W
Power Consumption 20W per meter
LED Type COB (Chip-on-Board)
Input Voltage 12V led strip DC / 24V DC (optional)
Luminous Efficacy Up to 90–110 lm/W (depending on CCT)
Luminous Flux Approx. 1800–2200 lm/m
Color Temperature (CCT) 2700K / 3000K / 4000K / 6000K (custom options available)
CRI (Color Rendering Index) Ra ≥80 (Ra ≥90 optional)
Beam Angle 180°
PCB Width 8mm / 10mm (optional)
PCB Material Flexible copper PCB (2oz optional)
Cutting Length Depending on voltage configuration
IP Rating IP20 / IP65 / IP67 (optional)
Dimmable Yes (with compatible dimmable driver)
Operating Temperature -20°C to +45°C
Storage Temperature -25°C to +60°C
Installation 3M adhesive backing (standard)
Lifespan Up to 30,000–50,000 hours (depending on installation conditions)
Certifications CE / RoHS (other certifications available upon request)
Warranty 2–5 years depending on model

If you need a customized datasheet with your logo, specific voltage, CRI, or IP rating, we can prepare a tailored technical document for your project or distribution requirements.

Installation process LED COB 10w led strip

  • Knowing as friends since 2010, we are always working together. Just like what he says in the video, “from 60,000pcs I only had a few breakdown which were directly, immediately replaced”. There are still tens of spare drivers we sent to him in case of breakdown in their warehouse because they don’t need them at all.

    Mr. Freddy Decaigny from Belgium
  • This electrical contractor firm has been our trusted partner since 2013, consistently sourcing LED products like 2G11 and T8 LED Tube Lights. Their recent orders now include our LED High Bay Lights, LED Flood Lights, Aluminium Profile, and Street Lights, hinting at a potential expansion in our collaboration involving LED aluminum profiles.

    Mrs. Paola Patrucco from Italy
  • We know each other in late 2013, right after testing for 4pcs samples, an 800pcs order is placed and the collaboration keeps going well. We do a big project together but due to the agreement, we can’t say more details here.

    Mr. Jamie Sharpe from Ireland
1. Are you a trading company or factory?

We are a LED strip light manufacturer located in Shenzhen, China, with 15 years of production experience and an in-house engineering team.

2. Where is your factory located?

Our factory is based in Shenzhen, Guangdong Province, one of the main LED manufacturing hubs in China.

3. What is your MOQ policy?

We support flexible MOQs to help distributors and project contractors start with manageable quantities.

4. How long is your production lead time?

Most regular orders are completed within 2–3 weeks depending on specification and order volume.

5. Do you support OEM and private labeling?

Yes. We provide customized labels, packaging, and even product adjustments according to your brand requirements.

6. What payment terms do you accept?

Common terms include T/T bank transfer. Specific arrangements can be discussed based on cooperation stage and order size.

7. Can I order samples before bulk purchase?

Yes, sample orders are available for evaluation before mass production.

8. How do you handle quality issues?

We maintain structured IQC, IPQC, FQC, and OQC processes. In case of confirmed quality concerns, we provide prompt technical support and solutions.

9. Can you coordinate shipment with other suppliers?

Yes. We can consolidate cargo from multiple vendors to help reduce your freight cost.

Technical FAQ Knowledge Base

This section answers common technical questions about selecting, installing, wiring, controlling, and maintaining a 20W COB LED strip. The goal is to help engineers, contractors, and OEM buyers make correct decisions, reduce failure risk, and improve long-term performance in real installations.

1. How do I choose the right voltage for a 20W COB LED strip?

Most professional applications prefer 24V DC because it reduces voltage drop and supports longer continuous runs. Lower voltage systems may require more frequent power injection.

Key points to confirm:

  • Power per meter (W/m)

  • Total installation length

  • Maximum run per feed

  • Driver output voltage tolerance (±5% typical)

For longer linear lighting projects, 24V systems usually provide more stable brightness.

2. What is the difference between COB LED strip and traditional SMD strip?

COB strips use chip-on-board technology to create a continuous light surface, while SMD strips use individually packaged LEDs.

Item COB LED Strip SMD LED Strip Best for
Light appearance Dot-free continuous Visible LED points Direct-view lighting
Visual comfort Smooth, low glare Possible spotting Shallow profiles
Aesthetic quality High-end linear Standard linear Architectural projects

COB is typically selected for premium visual results.

3. How much voltage drop is acceptable on long runs?

Voltage drop should generally be kept below 5% of the nominal voltage to avoid visible brightness differences.

To reduce voltage drop:

  • Use 24V instead of 12V

  • Inject power every few meters

  • Use thicker copper PCB

  • Use adequate cable gauge (AWG size matched to current)

Longer runs require careful planning.

4. How do I calculate the correct driver size?

Select a driver with at least 20% headroom above total calculated load.

Example:
Total strip power = 20W/m × length (m)
Driver capacity ≥ 1.2 × total wattage

This prevents overload and extends driver lifespan.

5. Can I cut the COB LED strip to custom lengths?

Yes, COB LED strips are designed with marked cutting intervals. Always cut at the indicated solder pad lines.

After cutting:

  • Seal exposed ends if moisture protection is required

  • Ensure correct polarity when reconnecting

  • Avoid damaging adjacent phosphor layer

Improper cutting may cause partial failure.

6. What causes flickering in LED strip installations?

Flickering is usually related to driver instability, voltage mismatch, or loose wiring connections.

Common causes:

  • Undersized power supply

  • Non-compatible dimmer

  • Loose DC connectors

  • Excessive voltage drop

Check driver output stability and wiring first.

7. How does 12V compare to 24V in LED strip systems?

Both are common, but performance differs in longer runs.

Item 12V System 24V System Best for
Voltage drop Higher on long runs Lower Long installations
Cutting interval Shorter Slightly longer Fine length control
Efficiency stability Moderate More stable Commercial projects

For commercial linear lighting, 24V is often preferred.

8. How do I prevent overheating in high-power LED strips?

Proper heat dissipation is essential. Install strips inside aluminum profiles to act as heat sinks.

Checklist:

  • Avoid installing directly on wood without metal backing

  • Ensure ambient temperature remains within rated range

  • Do not exceed rated power

  • Provide ventilation when enclosed

Excessive heat reduces lifespan.

9. Can COB LED strips be dimmed?

Yes, they can be dimmed if paired with compatible constant voltage dimmable drivers.

Common dimming options:

  • PWM dimming

  • 0–10V control

  • TRIAC dimming (with compatible driver)

Always confirm driver compatibility before installation.

10. How do I maintain a COB LED strip installation?

Routine inspection should include checking connections, driver condition, and adhesive stability.

Maintenance steps:

  • Inspect wiring annually

  • Replace damaged sections by cutting and re-soldering

  • Ensure no moisture intrusion in IP-rated systems

Proper maintenance reduces unexpected failure.

If you require a project-specific wiring diagram, installation recommendation, or power calculation sheet for your 20W COB LED strip, contact our engineering team for technical support.

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