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RGB COB LED Strip Light
LED QTY:840leds/m,630leds/m,720leds/m
Voltage :12v/24V
Watts:9w/m,10W,12W
PCB Width & Thinkness :12MM,10mm width,2OZ
IP Rating: IP20 ,IP67
RGBW RGB COB Led Strip Manufacturers Suppliers Factory from China: OX LIGHTING
RGB COB LED strip can reach to 576leds/m or higher density 840leds/m is different to regular SMD RGB LED strip Light ( 60leds/m, 120leds/m or at most 144leds/m, )
so the big different is very clearly, much higher density. (more led chips)
In the competitive LED Strip lighting, the RGB COB LED strip factory is a machine that needs to be different from the smd led tape equipment.
Invested in a lot of equipment,we have 12 product lines for cob led strip lights.
As we move into 2026, the chnage from traditional SMD technology to COB (Chip-on-Board) has redefined expectations for architectural, commercial, and residential lighting.
Defining the RGB COB Revolution
Cob rgb led strip is Unlike traditional LED strips where individual plastic-packaged diodes are soldered onto a board,
COB (Chip-on-Board) technology mounts bare LED chips directly onto a flexible printed circuit board (FPCB).
The “Dotless” Advantage
The primary output of an RGB COB factory is a “linear” light source. By packing hundreds of tiny Red, Green, and Blue chips per meter
and covering them with a continuous layer of silicone and phosphor-infused gel, the factory eliminates the “dots” characteristic of smd LED strips.
SMD Density: Typically 30–120 LEDs/meter.
COB Density: Often 480–800+ chips/meter.
Visual Result: A seamless, neon-like glow even without a diffuser.
An advanced RGB COB LED strip factory operates with high-precision cleanroom environment.
The production of RGB (Red, Green, Blue) strips is significantly more difficult than single-color strips
because it requires the precise alignment and wiring of three distinct types of chips.
Substrate Preparation (The FPCB)
The foundation is the Flexible Printed Circuit Board (FPCB). High-end factories use double-sided, 2oz or 3oz rolled copper.
Thicker copper ensures better heat dissipation and less voltage drop .
Die Bonding (The Heart of COB)
Resistor & IC Integration
To regulate current and ensure the Red, Green, and Blue channels, resistors are mounted.
In Addressable RGB COB Integrated Circuits (ICs) like the WS2811 are also added to allow for dream colors.
Encapsulation (The Gel Coating)
The “secret sauce” of any factory is its encapsulation recipe. A dispensing machine covers the entire chip array with a uniform layer of translucent silicone.
RGB strips light of this silicone is usually clear to allow the pure wavelengths of red, green, and blue to mix perfectly.
Reflow Soldering & Aging
The strips pass through a multi-zone Reflow Oven to solidify all connections. and then, they enter the Aging Room.
We will age their strips for 2 to 4 hours under full load to find any premature chip failures.
When sourcing from a factory, professional buyers look for these standard specifications:
Input Voltage: 5v, 12V or 24V DC (24V is good for longer runs).
CRI (Color Rendering Index): For RGB+W (White) , a CRI >90 is standard.
Beam Angle: COB strips provide a 180° beam angle, wider than the 120° of SMD LED Tape.
Wattage: Ranges from 10W/m to 18W/m .
Color Consistency: Measured in SDCM (Standard Deviation Colour Matching).
| Model No. | OX840RGB | OX630RGB | OX720RGB |
| Input Voltage | 12V/24V | 12V/24V | 12V/24V |
| Power | 18W | 14W | 10W |
| PCB Material | Double Sided FPC，2oz | Double Sided FPC，2oz | Double Sided FPC，2oz |
| Color | RGB | RGB | RGB |
| RA | 90+ | 90+ | 90+ |
| PCB | 12MM | 10MM | 12MM |
| Warranty | 3 years | 3 years | 3 years |
| LED Chip QTY | 840LEDs/m | 630LEDs/m | 720LEDs/m |
| Cut Section | 34mm | 71mm | 100mm |
Global Market Trends and Sustainability
The RGB COB market is currently experiencing a CAGR (Compound Annual Growth Rate) of approximately 10%. Several factors are driving this:
The Shift to “Smart” Factories
Leading factories in regions like Shenzhen integrated AI-driven Optical Inspection (AOI).
These systems use high-speed cameras to detect a single dead chip among thousands in real-time, to reduce the defect rate to nearly zero.
Challenges in COB Production
1. Thermal Management:Because the chips are so densely packed, heat builds up quickly. the silicone gule to prevent the “yellowing” of the strip over time.
2. Color Mixing:If the RGB chips are not placed with micron-level precision, the strip may show “color fringing” but not a pure blended light.
3. Repairability:Unlike SMD strips, a failure in a COB strip usually requires cutting out an entire segment.
How to Choose a Reliable RGB COB Factory
If you are a wholesaler or lighting designer,
Certifications: ISO9001 for the facility; UL, CE, and RoHS for the products.
FPCB Quality:Ensure they use at least 2oz copper
Warranty:A 3-to-5-year warranty is the industry standard
| Feature | SMD LED Strips | COB LED Strips |
| Appearance | Visible individual LED potential hotspots dot appearance | Seamless uniform line of light no visible dots |
| Efficiency | 80-100 lm/W | 100-140 lm/W |
| CRI | 70-80-95+ CRI depending on quality | Typically 90+ CRI |
| Beam Angle | Typically 120° | Typically 180° |
| Color Consistency | Can vary between individual LEDs (binning issues) | Excellent consistency across the strip |
| Flexibility | Flexible, but solder points can be stress points | flexible but not better fragile due to continuous chip arrays |
| Heat Dissipation | Good; heat spread across individual LEDs | Excellent; substrate acts as integrated heat sink |
| Cost | $2-10 per meter | $5-20 per meter |
| Cutting Points | Every 1-3 LEDs | More frequent cutting points 1-10mm |
| Waterproof | (IP20, IP65, IP67, IP68) | (IP20, IP65, IP67) |
the COB RGB is a quite good choice to meet dotless rgb illumination
Waterproof level: RGB COB LED strip can also make IP20, IP65, IP67 ,used by indoor and outdoor
Application: RGB COB LED strip are popular for backlighting TVs and monitors, gaming setups, and home theaters, providing an immersive viewing
or gaming experience with dynamic color changes synchronized with audio or video content.
RGBW is Multifunctional and high-performance LED light source designed for both Ambient lighting and decorative lighting applications.
The RGBW (Red, Green, Blue, White) color capabilities allow to mix dynamic color and a range of lighting effects, making it ideal
for creating vibrant atmospheres or highlighting specific areas.
COB LED strip vs CSP LED strip
COB is like “chips bonding + glue protection“, it is good use for large-area uniform light.
CSP is like “LED chip mounting + glue protection“, with a simpler process and longer life.
Rgbw Cob Led Strip Manufacturing Suppliers Factories exporter China
Our enterprise aim would be to “Focusing on customer request”. We consistently provide high-quality products to both new and old customers.
Especially customized products.
Hot spot(dot) free COB LED strip light
Slim COB, high wattage COB LED strip light
Turanable white, RGB, RGBW, Dim to warm COB LED strip light.
