COB Linear Light: A Buyer’s Guide to Types, Specifications, and Applications

COB linear light is a line-shaped LED lighting solution that uses closely arranged LED chips on a circuit board to create a visually continuous line of illumination. For buyers, the best option depends on where the light will be installed, how it will be controlled, and which performance requirements matter most—such as brightness, color quality, operating environment, and heat management. Flexible COB strips suit curved or concealed details, while rigid bars and profile-based systems can provide more structure for straight runs and architectural installations. This guide explains the main formats, specifications, applications, and sourcing questions to consider before requesting a quotation.

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Key Takeaways

• Match the product format to the installation: flexible strips for adaptable layouts, rigid bars for straight runs, and profiles when mounting, protection, or a finished appearance is needed.
• Compare complete specifications, including voltage, power, lumen output, color temperature, CRI, dimensions, IP rating, dimming compatibility, and cutting or connection options.
• Plan the power supply, wiring, installation method, and thermal conditions alongside the light itself; these affect the performance of the finished system.
• Ask suppliers to confirm the exact configuration, sample availability, MOQ, lead time, and documentation for your project rather than assuming these are identical across products.

Who This Guide Is For

This guide is intended for lighting distributors, contractors, project specifiers, OEM buyers, and purchasing teams evaluating COB linear light for indoor projects. It is useful whether you are sourcing a ready-to-install lighting assembly or selecting a light source to integrate into a custom fixture. If you are comparing supplier offers, use the selection framework below to align each quotation with the same application and specification requirements. That makes differences in product construction and scope easier to identify.

What Is COB Linear Light?

How COB construction creates a continuous appearance

COB means “chip on board,” a packaging approach in which LED chips are mounted closely together on a substrate. In a linear light, this arrangement can produce a more continuous-looking illuminated line than a design with widely spaced, individually visible LED packages. The visual result still depends on the specific product, its diffuser or profile, viewing distance, and installation conditions. Buyers should assess the actual product sample or installation mock-up when the appearance of the light line is a key design requirement.

Common COB linear light formats

• Flexible COB strip: A bendable light source for coves, shelving, joinery, and other installations that may require curves or site adjustment. Check bend direction, strip width, cutting intervals, and connection methods for the selected model.
• Rigid linear bar: A more structured option for straight installations such as display cases, cabinets, and furniture. Confirm bar length, mounting method, end connections, and whether the product can be linked into longer runs.
• COB strip in an aluminum profile: A system combining a strip, channel, and often a diffuser. The profile can support mounting and help manage heat, but compatibility between the strip width, channel, diffuser, and accessories must be checked.
• Single-color or color-changing options: Depending on the product range, options may include fixed white, tunable white, or multicolor output. Confirm the required controller, driver, wiring, and control protocol before ordering.

Specifications Buyers Should Compare

Do not compare COB linear lights by appearance or wattage alone. Request a current datasheet for the exact configuration and check that the stated values apply to the complete product, not just a component or an optional version. The following specifications help translate a design brief into a purchase-ready requirement. Where a project has regulatory or safety requirements, verify the relevant documentation for the destination market and final assembly.

Match the Light to the Application

Architectural coves and indirect lighting

For coves and concealed ceiling details, buyers often prioritize a smooth appearance, consistent color, and practical access for maintenance. Confirm the distance between the strip and the reflecting surface, the profile arrangement, and whether the chosen output is adequate for the design. A sample section can help reveal visible gaps, reflections, or unwanted hotspots before a larger order is placed. Also confirm where the driver will be located and how it can be accessed.

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Retail displays, cabinetry, and furniture

Display and joinery applications may require a narrow strip or bar that fits a specific channel or cabinet detail. Color quality can be especially important where products, fabrics, food, or finishes need to look consistent under the light. As a project criterion, buyers may specify a CRI of Ra 90 or higher for color-sensitive displays, then verify the offered product’s documented rating. Check the actual usable dimensions, wiring exit direction, and connection accessories before production or installation.

Work areas and task lighting

For work surfaces, compare measured or documented lumen output with the task and mounting position rather than selecting by wattage alone. Consider glare, diffusion, dimming, and the distance between the light source and the work surface. A tunable-white product may be relevant when the project requires more than one white-light setting, but it also requires compatible controls and a clear commissioning plan. The supplier should confirm which components are included and which must be sourced separately.

A Practical Selection Framework

1. Define the installation: Record the location, run lengths, mounting surface, ambient conditions, and whether the route includes corners or curves.
2. Set the lighting requirement: Specify the desired effect, color temperature, color quality, dimming needs, and target brightness. Ask the supplier to recommend a model against these requirements.
3. Confirm electrical design: Establish the input voltage, power per meter, supply capacity, wiring approach, and connection layout. For example, a 10 m run specified at 10 W/m represents 100 W of nominal strip load before considering project-specific supply sizing and wiring losses.
4. Check physical fit: Compare strip width and thickness with the profile, confirm cut intervals, and identify end caps, connectors, mounting clips, and feed points.
5. Validate the configuration: Review the datasheet, sample, driver, controller, and any required project documentation together. Request written confirmation of the exact model and options being quoted.
6. Plan procurement: Confirm sample and production quantities, MOQ, packaging, lead time, shipping terms, and replacement-part availability with the supplier.

Pricing, MOQ, and Lead Time

COB linear light pricing depends on the selected construction, output, color specification, protection level, accessories, customization, order quantity, and packaging. A quote for a strip alone may not be comparable with one that includes a profile, diffuser, driver, connectors, or controller. MOQ and lead time are also supplier- and configuration-dependent, so buyers should request them against the exact model and quantity rather than rely on general estimates. For project sourcing, ask whether samples, production batches, and repeat orders can be quoted with the same specification and clearly stated commercial terms.

Common Buying Mistakes to Avoid

• Choosing by wattage alone: Wattage indicates electrical load, not the complete visual result. Compare lumen output, color quality, and installation conditions as well.
• Ignoring system compatibility: A strip, power supply, dimmer, and controller must be compatible as a system. Confirm the combination before placing an order.
• Overlooking thermal and mounting conditions: The installation surface and profile can affect how heat is managed. Follow the product guidance and have the installation reviewed where necessary.
• Assuming all COB products look or perform alike: Chip arrangement, output, color options, dimensions, and accessories differ by model. Compare exact part numbers and request samples where appearance matters.
• Leaving procurement details until late: Unconfirmed cut lengths, connectors, packaging, or lead times can disrupt installation planning. Include them in the initial RFQ.

Evaluating a COB Linear Light Supplier

A capable supplier should be able to explain product options in relation to your application and provide model-specific technical information for review. Ask whether the supplier can support sample evaluation, customization discussions, accessory matching, and export or packaging requirements relevant to your project. Request clear answers about MOQ, lead time, warranty terms, and the documents available for the product configuration you intend to purchase. These checks help you evaluate both the light source and the support behind the order.

Conclusion: Choose by System Fit, Not by Product Name Alone

The right COB linear light is the one that fits the application, installation geometry, electrical design, visual requirements, and procurement plan. Start by choosing the format, then compare the exact specifications and confirm compatibility with profiles, drivers, controls, and wiring. Before committing to a production order, review a sample or representative installation and obtain written confirmation of the quoted configuration, MOQ, and lead time. Share your project requirements with ENTA Lighting to discuss suitable indoor linear lighting options and request a B2B quotation for your target specification.