400 Chips/m COB LED Strip Buying Guide: Specifications, Applications, and Installation

A 400 Chips/m COB LED strip is a flexible linear light source with 400 LED chips arranged along each meter of strip. Its high chip density can create a visually continuous line of light, making it useful where the individual light points of some conventional LED strips are less desirable. For buyers, the right choice depends on more than chip count: confirm voltage, power, color quality, strip width, cut interval, thermal conditions, and installation environment against the project requirements. This guide explains how to compare those details, match the strip to an application, and plan installation before placing an order.

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Key Takeaways

• 400 chips/m describes chip density, not brightness, power consumption, or guaranteed light uniformity.
• The nominal spacing calculated from 400 chips across 1 meter is approximately 2.5 mm; the actual cut interval must be checked on the product datasheet.
• Specify the required voltage, watts per meter, color temperature, CRI, strip dimensions, dimming method, and IP rating before comparing quotations.
• Plan power injection, heat dissipation, profiles, connectors, and access for maintenance as part of the lighting design.
• Ask the supplier to confirm the exact configuration, sample availability, MOQ, and lead time for your order.

Who This Guide Is For

This guide is for lighting distributors, contractors, project specifiers, and OEM buyers sourcing COB LED strips for indoor lighting. It is especially relevant when a project calls for a smooth linear appearance in a cabinet, display, cove, shelf, or architectural detail. It can also help procurement teams compare offers that use similar chip-density descriptions but may differ in electrical, optical, and mechanical specifications. Final selection should be based on the project design and confirmed product documentation, rather than the “400 chips/m” label alone.

What 400 Chips/m COB Means

Chip density and the continuous-light effect

COB stands for Chip on Board. In a COB LED strip, multiple LED chips are mounted along a flexible circuit board and covered by an optical layer, commonly designed to blend the light into a continuous-looking line. A density of 400 chips/m corresponds to a nominal average spacing of about 2.5 mm between chips when calculated as 1,000 mm divided by 400. This figure describes density; it does not establish the strip’s output, efficiency, color consistency, or suitability for every diffuser.

The continuous appearance can be valuable in applications where the light source is visible or reflected from nearby surfaces. However, the final effect depends on the COB construction, diffuser or profile, mounting distance, surface finish, and viewing angle. Request product photos or a sample when appearance is critical, and evaluate it in a setup similar to the finished installation. Do not use chip density as a substitute for photometric information.

Specifications to Compare Before Buying

Electrical and optical requirements

Start with rated voltage and power consumption per meter, then confirm the compatible power supply and control equipment. A 24 V system is one example of a commonly specified low-voltage format, but buyers should not assume that a particular 400 Chips/m model is available in that voltage. Ask the supplier to confirm rated watts per meter, recommended supply capacity, maximum continuous run, and any power-injection guidance for the exact model. These values affect wiring, voltage drop, power-supply selection, and operating temperature.

For the visual result, specify color temperature, color tolerance if controlled, and color rendering requirements such as CRI. Select these according to the materials and tasks in the space: a retail display, for example, may have different color-rendering priorities from concealed cove lighting. Request available lumen data and the measurement basis for the quoted configuration rather than estimating output from chip count. If dimming is required, confirm the control method and compatibility with the selected driver.

Physical construction and environment

Check strip width, copper-board construction where specified, backing adhesive, connector type, and minimum bending radius if the route includes curves. Confirm the cut marks and cut interval on the actual product drawing; a chip spacing of approximately 2.5 mm does not mean the strip can be cut at that interval. For humid, dusty, or exposed locations, verify the protection level and installation conditions in the datasheet. An indoor product should not be treated as suitable for wet or outdoor use unless its documented construction and rating support that application.

Applications and Product Matching

For cabinet and shelf lighting, compare strip width with the available channel and check whether the light will be visible from normal viewing positions. In display cases, review color rendering, dimming needs, and heat management alongside the desired continuous appearance. Cove and indirect lighting may allow more distance between the strip and the viewing surface, but the required brightness and uniformity still depend on room geometry and finishes. For a task-lighting application, assess delivered light at the work surface rather than relying on the strip’s appearance alone.

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COB strips are available in different electrical, color, coating, and board configurations, but availability varies by model and supplier. Treat single-color and tunable or multi-channel versions as distinct specification choices, since they can require different controllers and wiring. Likewise, silicone or other protective coverings can affect dimensions and heat transfer, so confirm the complete assembly rather than selecting by strip name alone. Ask for a drawing and datasheet for the exact configuration under quotation.

Selection Framework for Buyers

1. Define the application: Record the mounting location, viewing distance, target appearance, and whether the strip is decorative, display, or task lighting.
2. Set the performance requirements: Specify color temperature, CRI, dimming, and any required lumen or color-tolerance criteria.
3. Confirm fit and power: Check strip width, voltage, watts per meter, planned run length, power injection, and available installation space.
4. Review environment and installation: Confirm protection needs, ambient conditions, profile or heat-sink arrangement, and maintenance access.
5. Approve the exact item: Review the datasheet, product drawing, sample if needed, packaging details, and commercial quotation before production.

Installation Planning and Common Mistakes

Plan the electrical layout before mounting

Measure each run and calculate connected load using the confirmed watts-per-meter specification. Select a power supply with appropriate capacity based on the supplier’s guidance and the project’s operating conditions; do not size it from chip density. For longer runs, ask the supplier or project electrician to assess voltage drop and whether power should be fed at more than one point. Keep polarity, controller compatibility, and cable routing clear in the installation plan.

Mount the strip on a clean, dry, suitable surface, and use an aluminum profile or other thermal-management method where the design and product instructions call for one. Avoid sharp bends, twisting, or pulling that can stress the flexible board and solder joints. Cut only at marked cut points, then use compatible connectors or soldering methods specified for the product. Before closing a channel or concealing the wiring, test the strip, controls, and all connections.

Mistakes that create avoidable project risk

A common mistake is choosing a strip solely because it has 400 chips/m, then discovering that its width, output, voltage, or color does not match the design. Another is assuming that every COB strip can be cut, dimmed, or installed in the same way. Buyers can reduce these risks by comparing the datasheet and physical sample with the project drawing before committing to a full quantity. Also confirm connector availability and access for replacement if the strip will be installed in a difficult-to-reach location.

Pricing, MOQ, and Lead Time

Pricing depends on the confirmed electrical and optical configuration, materials, order quantity, packaging, and any requested customization. MOQ and lead time can also vary by model, production schedule, and destination requirements, so they should be confirmed in a written quotation rather than assumed from a general product description. For budget comparisons, request the same specification from each supplier, including voltage, watts per meter, color parameters, strip dimensions, protection level, and accessories. This makes it easier to distinguish a genuine price difference from a difference in the product being quoted.

Supplier Evaluation Checklist

Choose a supplier that can provide a clear datasheet, product drawing, and written answers about cut points, power limits, controls, and installation conditions. Ask whether a sample can be supplied for appearance and fit checks, and confirm how the quoted product will be identified in the order documentation. Review the supplier’s communication on MOQ, lead time, packing, and change control for repeat orders. Avoid relying on broad claims that are not tied to the exact model and configuration.

At ENTA Lighting, we support B2B buyers in reviewing 400 Chips/m COB LED strip requirements for indoor lighting projects. Share your application, target color, voltage, installation dimensions, quantity, and required delivery window so we can check the appropriate available configuration and provide a project-specific quotation. We can also help clarify which electrical and mechanical details need confirmation before you approve a sample or order.

Conclusion

A 400 Chips/m COB LED strip is a strong option when a project needs a dense, continuous-looking linear light source, but chip count alone cannot determine whether it is the right product. Confirm the exact optical, electrical, mechanical, and environmental specifications, then plan the driver, wiring, thermal management, and cut locations before installation. The practical next step is to prepare a project specification and request a matching datasheet, sample where appropriate, and quotation. Contact ENTA Lighting with your requirements to discuss a suitable configuration for your indoor lighting application.

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