A COB linear light uses closely arranged LED chips on a circuit board to create a continuous-looking line of light, often with fewer visible bright spots than conventional, widely spaced LED strips. For B2B buyers, the right choice depends on the installation format, required light quality, power and control setup, and the conditions where the product will operate. This guide explains the main COB linear light options, the specifications to compare, and how to prepare a practical supplier inquiry. Because product configurations vary, treat example values below as starting points for discussion rather than universal standards.
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This guide is intended for lighting distributors, contractors, project specifiers, OEM buyers, and interior fit-out teams evaluating linear LED lighting. It is useful whether you are sourcing flexible COB tape for a profile or comparing a complete linear fixture for a commercial project. The term “COB linear light” can describe different product formats, so clarifying what you need is an important first step. A supplier can only make a meaningful comparison when the product form and installation conditions are clear.
COB means “chip on board.” In a COB LED strip, multiple LED chips are mounted closely on a substrate and covered by a continuous phosphor layer, producing a relatively uniform illuminated surface. The strip is typically installed in or alongside an aluminum profile, which can provide a mounting surface and support heat transfer. A COB linear fixture may also combine the light source, housing, optics, and electrical components in a single assembly.
The continuous appearance can be helpful where the light source is visible, such as under cabinets, in display shelving, or in architectural details. A diffuser can further soften the output, although its material, shape, and distance from the LEDs affect the finished appearance and light transmission. COB construction does not, by itself, guarantee a particular brightness, color quality, or lifetime. Those characteristics depend on the full design and should be checked in the product specification and project samples.
Flexible COB strips can follow straight runs and, within the manufacturer’s specified limits, gentle curves. Buyers should confirm the strip width, cut intervals, connection method, adhesive backing, and whether a profile is required for the intended installation. The strip’s substrate and construction affect flexibility and heat handling, so ask for the product datasheet before specifying it for a long or enclosed run. For a neat, serviceable installation, assess the strip together with its profile, cover, end caps, and power supply.
An aluminum profile can protect the strip, provide a clean mounting channel, and help move heat away from the LED assembly. Profile options may include surface-mounted, recessed, corner, or suspended designs, with different dimensions and diffuser styles. Check whether the selected strip fits the profile’s internal width and whether the finished assembly suits the available installation depth. For visible applications, request a sample of the complete strip-and-profile combination rather than judging the strip alone.
An integrated COB linear fixture is a more complete product, often designed with a housing, optical cover, and electrical components selected as a system. It may simplify procurement when the project needs a ready-to-install luminaire, while a strip-and-profile system can offer more flexibility for custom lengths or details. Compare installation method, driver access, wiring, and serviceability as well as appearance. Confirm which components are included in the quotation and which must be sourced separately.
Compare products using the same project requirements and measurement basis. A high-level description such as “bright, warm white COB” is not enough to confirm whether two options are equivalent. Ask suppliers to identify the exact product configuration and provide the relevant datasheet, wiring details, and dimensional information. The values below are examples of specifications that buyers may set or request; they are not claims about every COB product.
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| Specification | What to check | Buyer consideration |
|---|---|---|
| Input voltage | Rated DC or AC input and compatible driver | For example, 24 V DC may be a project requirement, but verify the exact product rating and system design. |
| Power | Watts per meter for strip products, or total wattage for fixtures | An illustrative comparison range such as 8–15 W/m can help frame an inquiry; actual consumption must come from the selected model. |
| Color temperature | Available CCT options and consistency requirements | State the required value and tolerance in the project specification instead of relying on a color description alone. |
| Color rendering | CRI or other stated color-quality data | If color appearance is important, a buyer may request a target such as CRI 90+ and verify that the offered model meets it. |
| Dimming and control | Driver compatibility and control protocol | Confirm the complete chain, including control equipment, driver, and luminaire or strip. |
| Environmental suitability | Specified protection level and installation conditions | Match the product’s documented rating to the actual location; do not assume all COB strips suit damp or exposed areas. |
For shelving and display cases, a continuous-looking line can reduce the visual distraction of individual LED points. Buyers should prioritize suitable color appearance, a compact profile, manageable glare, and access for maintenance. Check the viewing angle and diffuser effect with the actual merchandise and installation distance. If colors must be represented accurately, specify a color-rendering target and request supporting product information.
In coves, joinery, and decorative details, COB strips can provide a linear effect while keeping the light source visually discreet. Confirm the required dimming method, the location of the driver, and the length of each run before finalizing the layout. Where the strip is installed in a concealed channel, ensure there is enough room for the profile, wiring, and any required service access. A mock-up can help the project team assess the finished appearance before ordering at scale.
For general or task lighting, assess the complete luminaire rather than choosing by LED type alone. Light output, distribution, glare control, mounting arrangement, and compliance requirements should all be checked against the project brief. A decorative COB strip may not be a substitute for a fixture designed to meet a defined illumination plan. Ask the project designer or supplier to confirm suitability for the intended lighting role.
For longer strip runs, ask the supplier for guidance on power-feed points and voltage drop rather than assuming that one feed will produce uniform output along the entire length. The answer depends on the strip design, circuit layout, power, and installation. Also confirm cut points and whether cut sections can be reconnected with the proposed accessories. These checks can prevent avoidable changes during installation.
COB linear light pricing depends on the chosen format, specifications, materials, accessories, and order quantity. A quotation may change if you request a custom length, a specific color temperature, a particular profile, or a different driver arrangement. Minimum order quantities and production lead times are supplier- and configuration-specific, so they should be confirmed for the exact bill of materials. For a useful comparison, request itemized pricing and ask whether samples, packaging, and accessories are included.
At ENTA Lighting, we work with B2B buyers to clarify application requirements and evaluate suitable indoor lighting configurations. Share your target format, dimensions, electrical requirements, quantity, and destination market so our team can review the request and advise on available options. Product availability, customization, MOQ, and delivery timing depend on the specification and should be confirmed in the quotation.
COB linear light is a useful option when a project calls for a smooth-looking linear source, but the best product depends on whether you need a flexible strip, a profile assembly, or an integrated fixture. Compare voltage, watts per meter or total fixture wattage, color requirements, dimming compatibility, installation dimensions, and environmental suitability using documented product information. Do not assume that COB construction alone guarantees brightness, color quality, or suitability for a particular space. To move forward, prepare a project brief and request a matching datasheet, sample, and itemized quotation from your supplier.
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