Key Features of Slim 3mm/5mm Width COB LED Strip Lights

1. Side Light Output for Cleaner Sign Lighting

This strip emits light from the side, which makes it a very good fit for illuminated signs and backlit shapes. Because the light comes out sideways, the strip can stay hidden inside the sign structure while still giving a clean and even glow. It is a practical choice when the project needs a neat lighting effect instead of a visible strip line.

2. High-Reliability 3014 Side-Emitting LED Chips

The strip uses high-intensity 3014 side-emitting LED chips, which are made for stable performance and reliable daily use. The light effect is clear and consistent, so it works well for sign making, display outlines and decorative backlighting where the lighting needs to look smooth and professional.

3. 5mm Slim PCB for Narrow Sign Structures

With a 5mm slim PCB, this strip fits easily into narrow housings and slim sign channels. That makes it easier to install in projects where space is tight, such as light boxes, letter signs and compact backlit structures. The slim board also helps the strip stay discreet inside the finished sign.

4. 25mm Cut Unit for Flexible Lettering and Shapes

The 25mm cut length gives you more freedom when making custom signs, letters or shaped outlines. It is useful for jobs that need short segments, curves or detailed fitting, because you can cut the strip more precisely to match the sign layout.

 

Slim 3mm/5mm Width COB LED Strip Lights Dimensions

 

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Recommended Applications for Slim 3mm/5mm Width COB LED Strip Lights

1. Backlit Signs

Great for backlit sign panels and sign boxes.

The side-emitting design helps light spread from the edge, so the sign looks bright and clean without showing the LED strip directly.

2. Illuminated Letters

Suitable for channel letters and illuminated lettering.

The 25mm cut and slim structure make it easier to fit inside narrow letter shapes and keep the lighting even along the outline.

3. Display and Decorative Sign Lighting

Works well in display signs, shop signs and decorative indoor projects.

It gives a clean visual effect for branding, decoration and indoor sign applications where the lighting should look polished and professional.

 

Waterproof & IP Protection Options for COB LED Strip Lights(Based on Different Widths)

Picture
Description	Silicone extrusion series	Hollow transparent silicone Series	Hollow dual-color silicone extrusion series	Hollow arc-shaped silicone extrusion series	Silicone extrusion series	Solid transparent silicone extrusion series
IP Rate	IP65	IP67	IP67	IP67	IP67	IP68
Applicable to	For 5mm PCB Width COB Strip	For 8mm/10mm/12mm PCB Width COB Strip	For 10mm PCB Width COB Strip	For 8mm PCB Width COB Strip	For 3mm PCB Width COB Strip	For 8mm/10mm/12mm PCB Width COB Strip

 

Packaging & Shipping Information for Slim 3mm/5mm Width COB LED Strip Lights

Item No.	Qty per Rolls(m)	Qty per Carton(m)	Total Weight(kg)	Dimension of outer carton（mm)
				Length	Width	Height
YS-RNCOBX400C05RR	5	500	9.2	480	480	260

 

Professional COB LED Strip Lights Manufacturer & Supplier

Founded in 2013, YESUN LED is a Shenzhen-based manufacturer specializing in LED signage and commercial lighting solutions. With 5,000㎡ of automated factory space, dedicated SMT lines, and strict full-process QC, we support OEM/ODM projects for customers in over 100 countries. To learn more about our team, factory, and production capabilities, please visit our About Us page.

 

Product Certifications & Compliance

Our products comply with international standards including UL, ETL, CE, and RoHS certifications to support different market requirements.
For complete certification files and downloadable documents, please visit our Certificates Download Center.

COB LED Strip Lights Quality Control Process

We apply strict quality inspection standards throughout production to ensure stable performance and reliable quality before shipment.