A 400 Chips/m COB LED strip is a high-density linear light source with 400 LED chips arranged along each meter of strip. Because the chips are closely spaced and covered by a continuous phosphor layer, the light can appear more uniform than a strip with widely spaced, exposed LEDs; the finished effect still depends on the strip, installation surface, and any diffuser or profile. For indoor projects, choose by application and verified specifications—not chip count alone. Before ordering, confirm output, power, voltage, color quality, cut length, thermal requirements, and compatibility with the driver and controls.
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This guide is for lighting distributors, contractors, OEM buyers, and project teams evaluating COB LED strips for indoor use. It is particularly useful when the design calls for a continuous-looking line of light in a cove, cabinet, display, or architectural detail. We explain which specifications to request and how to compare suppliers without assuming that every 400 Chips/m product has the same performance.
COB means “chip on board.” Multiple LED chips are mounted closely on a flexible circuit board and covered by a phosphor-based encapsulation layer. That continuous light-emitting surface can reduce the visible separation between individual points, especially when compared with lower-density strips viewed directly.
At 400 chips per meter, the nominal spacing works out to approximately 2.5 mm per chip, calculated as 1,000 mm divided by 400. This is a spacing estimate, not a specification for the strip’s cut interval, package length, or illuminated appearance. Ask for product documentation and, where appearance is critical, evaluate a sample in the intended installation.
COB strips can differ in circuit-board construction, encapsulation, backing, and protection options. A flexible strip may suit straight or gently curved details, while a rigid aluminum profile can provide a defined mounting surface and help manage heat. If the strip will be exposed to moisture, cleaning, or dust, ask the supplier for the specific protection level and its intended conditions rather than assuming all COB strips are suitable.
Also confirm the strip’s width, adhesive backing, polarity markings, connector compatibility, and cut marks. These details affect whether it fits the chosen channel and can be installed and serviced as planned. For a visible installation, check the result with the actual diffuser, wall finish, and viewing distance.
Request a current datasheet that identifies operating voltage, power consumption in watts per meter, luminous output in lumens per meter, color temperature, color rendering information, and available dimming methods. Verify whether stated values apply to the exact color and configuration being quoted. A higher chip count does not, by itself, confirm higher brightness, better color quality, or lower energy use.
Check the recommended maximum run length and the supplier’s guidance for feed points and voltage drop. These depend on the strip’s electrical design and operating conditions, so do not infer them from chip density. Confirm whether the proposed driver has suitable output voltage and sufficient capacity for the installed load.
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For kitchens, worktops, and storage areas, consider both useful light on the task surface and visual comfort when the strip is visible. Review output, color appearance, dimming behavior, and the position of the light source. A diffuser may soften the appearance, but its effect on brightness should be included in the project evaluation.
For coves and shelves, a continuous-looking line can help create an even visual effect along a surface. The final result depends on mounting distance, reflection, strip orientation, and the finish of the surrounding materials. For display cases, check whether the chosen color temperature and color rendering characteristics suit the products being shown.
Where occupants can see the strip directly, assess glare and the appearance of the emitting surface from normal viewing positions. A high-density COB strip may reduce visible point separation, but it does not guarantee a uniform result in every profile or optical setup. Request a sample or mock-up if the line of light is a prominent design feature.
Pricing for a 400 Chips/m COB LED strip can depend on the selected electrical and optical specifications, protection, order quantity, packaging, and customization requirements. Compare quotations on the same configuration and unit basis, including whether accessories or drivers are included. A lower unit price is not a like-for-like comparison if the power, output, color, or protection differs.
Ask each supplier to state the minimum order quantity, sample availability and cost, production lead time, shipping terms, and the point at which the lead time begins. These terms can vary by specification and order, so request written confirmation for your project rather than relying on a general estimate. For repeat supply, clarify how product revisions and batch identification will be communicated.
At ENTA Lighting, we work with B2B buyers to review indoor lighting requirements and identify the product details that need confirmation before ordering. Share the intended application, strip length, preferred color appearance, voltage, protection needs, and control method so we can discuss a suitable configuration. Product availability, customization, and commercial terms should be confirmed for each inquiry.
A 400 Chips/m COB LED strip has a nominal chip spacing of about 2.5 mm, which can support a more continuous-looking light line, but chip density alone does not determine project performance. To decide whether it suits an indoor application, compare verified electrical and lighting data, installation constraints, thermal guidance, and the appearance of a sample in the intended setting. The practical next step is to prepare a specification brief and request a matching datasheet, sample, and written quotation from your supplier.
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