A tunable white COB linear light combines a continuous-looking line of light with adjustable color temperature, allowing a project to shift from warmer to cooler white without changing the fixture. To select one, compare its CCT range, color quality, wattage, output, control compatibility, dimensions, and thermal requirements against the installation and intended use. These specifications vary by product, so request the full datasheet and confirm performance with the proposed driver and control system before ordering. This guide explains what to check and what information to prepare when requesting a quotation from a supplier such as ENTA Lighting.
You can find more information on our web, so please take a look.
This guide is for lighting distributors, contractors, OEMs, and project buyers sourcing linear lighting for commercial interiors. It is also useful for designers who need adjustable white light in applications such as offices, retail displays, hospitality interiors, or architectural details. The right specification depends on the visual result, installation conditions, and control strategy—not on a single specification in isolation. Buyers should define these requirements before comparing products or prices.
COB, or chip-on-board, describes an LED arrangement in which multiple LED chips are mounted closely together on a substrate. In a linear light, that arrangement can help create a more continuous luminous appearance than widely spaced individual LED points, especially when paired with a suitable diffuser or profile. Tunable white versions typically combine warm-white and cool-white LED channels. A compatible controller adjusts the relative output of those channels to change the perceived white color.
The available adjustment is defined by the product’s correlated color temperature (CCT) range. For example, a buyer may see a specification of 2700–6500 K, but this is an illustrative range rather than a standard that every product provides. Confirm the actual endpoints, whether both channels can be controlled smoothly, and how the light output behaves at different settings. A product’s CCT range alone does not establish its color consistency or color-rendering quality.
COB linear products may be supplied as flexible LED tape, a rigid linear module, or a finished fixture that integrates the light source into a housing. Flexible tape can suit curved details or continuous runs, while rigid modules and finished fixtures may be more appropriate where mounting, protection, or mechanical stability is important. Aluminum profiles are often used to support installation and dissipate heat; a diffuser can soften the appearance and protect the light source. Check the product construction and installation instructions rather than assuming that all COB products can be mounted or cut in the same way.
In offices and meeting spaces, buyers may prioritize comfortable white-light adjustment, consistent color, and integration with the building’s controls. Retail projects may need a warm setting for some merchandise or a cooler setting for other display conditions, while hospitality interiors often use warmer white as part of the desired atmosphere. These are design considerations, not guaranteed outcomes: the effect depends on the room, surfaces, optics, dimming level, and selected CCT. Where visual appearance is important, evaluate a sample in a representative setting.
For coves, shelves, and concealed architectural details, check the viewing angle, diffuser, mounting distance, and whether the light source will be visible from normal viewing positions. For long runs, confirm the maximum recommended run length and the power-feed arrangement with the manufacturer. Do not assume a continuous-looking COB line will appear seamless across every joint or corner. Layout, feed points, profile design, and installation tolerances all contribute to the finished result.
Request a datasheet that states input voltage, rated power, light output, CCT range, dimming method, and operating conditions. Wattage is commonly specified per metre for linear tape or modules, but a value such as 10 W/m is only an example and should not be treated as a recommendation without considering the required brightness and thermal setup. Compare light output at the intended CCT and dimming level where that information is available. Also confirm whether the stated output refers to the LED source or the complete fixture.
Link to ENTA Lighting
| Specification | What to verify | Why it matters |
|---|---|---|
| CCT range | Minimum and maximum CCT, plus adjustment behavior | Confirms whether the product can create the intended warm-to-cool range. |
| Color quality | CRI or other stated color-rendering data, and consistency information | Supports decisions where accurate color appearance matters. |
| Power and output | W/m, lumens, voltage, and conditions for stated values | Helps size the power supply and assess light levels. |
| Control system | Driver type, channel arrangement, and dimming protocol | Reduces integration issues with the project control system. |
| Mechanical fit | Width, length, cut points, profile, and installation method | Checks compatibility with the planned joinery or fixture. |
For projects where color appearance is important, buyers often set a CRI target such as 90 or higher; this is a project criterion, not a universal guarantee of product performance. Ask which color-rendering metric is supplied and request the relevant product data. For controls, identify whether the system uses separate warm and cool channels, a compatible tunable-white driver, and the intended control protocol. Confirm wiring, addressing, and dimming behavior with the driver and control-system supplier before finalizing the bill of materials.
Heat management also affects product selection. Check the manufacturer’s mounting guidance, ambient operating limits, and any required aluminum profile or heat-sinking arrangement. Confirm whether the product is suitable for the installation environment, including any required ingress protection rating. A rating should be selected and verified for the actual product configuration, not inferred from the LED technology alone.
There is no reliable universal price for a tunable white COB linear light because cost depends on the product format, CCT range, electrical specification, control requirements, materials, and order quantity. A custom profile, connector, packaging, or length may also affect the quotation. Ask suppliers to separate the light source, driver, profile, and other accessories where relevant, so you can compare equivalent configurations. Confirm whether samples, tooling, or customization are quoted separately.
Minimum order quantity and lead time likewise depend on the selected configuration and current production schedule. Request a written quotation that identifies the exact part number or specification, sample availability, MOQ, production lead time, shipping terms, and any approval steps. For project planning, distinguish sample or engineering time from mass-production time. These details should be confirmed with the supplier for each order rather than assumed from a general product category.
A dependable supplier should be able to clarify the relationship between the LED product, driver, and controls, and identify any compatibility limits. Ask for a current datasheet, installation guidance, wiring information, and details of available customization. If the project requires specific compliance documentation, request documents for the exact model and configuration under consideration. Avoid relying on broad claims that are not tied to the quoted product.
To select a tunable white COB linear light, begin with the required CCT range and color quality, then check output, power, controls, dimensions, and installation conditions as a complete system. Treat example values such as 2700–6500 K, CRI 90+, or 10 W/m as possible specification points—not as universal product characteristics. Before placing an order, verify the exact model, driver, control method, and quotation details, and test a sample when the visual result or integration is critical.
At ENTA Lighting, we support B2B buyers evaluating indoor linear lighting requirements and preparing product specifications for quotation. Share your target CCT range, installation length, desired control method, project environment, and estimated quantity so we can discuss a suitable configuration. If you already have a drawing or fixture specification, include it with your inquiry to help clarify product fit, accessories, and sourcing requirements.
If you want to learn more, please visit our website tunable white cob linear light.