48V COB LED Strips – Long Runs up to 20–50 m
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48V COB LED Strips for Long Runs and Professional Installations
proCOB® 48V LED strips are designed for long, uniform lines of light where reducing voltage drop and the number of power injection points has a real impact on the quality and simplicity of the installation. At the same power level, the higher operating voltage reduces the current flowing through the system compared with 12V and 24V solutions. This makes 48V LED technology particularly suitable for extensive architectural, commercial and decorative lighting projects.
48V COB LED Strip IP20 - 50 m - 4000K - 6W/m ULLS21 Unilight
proCOB® 48V LED Strips – Professional Solutions for Long Lines of Light
A 48V LED strip is particularly well suited to installations where traditional 12V or 24V systems would require multiple power injection points, additional wiring or repeated power feeds along the LED strip. 48V technology allows long lighting runs to be designed with lower current flowing through the circuit, making it easier to reduce cable losses and voltage drop.
This category includes professional proCOB® 48V LED strips designed for both indoor applications and demanding project installations. An especially important part of the range is formed by 48V COB LED strips, combining the benefits of a higher operating voltage with a highly uniform line of light.
These solutions are suitable for homes, apartments, hotels, restaurants, shops, offices, shopping centres, public spaces and professional architectural lighting installations.
Why Are 48V LED Strips Better Suited to Long Runs?
One of the key advantages of a 48V system is the ability to deliver the same power with lower current than a 24V system. Lower current means reduced cable losses and makes voltage drop easier to control in extensive lighting installations.
This becomes especially important when LED lines extend over several or even several dozen metres, where a conventional 24V installation may require additional power injection points at regular intervals.
12V vs 24V vs 48V LED Strips – What Is the Difference?
| Feature | 12V | 24V | 48V |
|---|---|---|---|
| Typical application | Short runs, furniture and small decorative applications | Standard residential and professional LED installations | Long lighting lines and demanding professional projects |
| Current at the same power | Highest | Lower than 12V | Lowest of the compared systems |
| Voltage drop over long runs | Most problematic | Much easier to manage | Particularly advantageous for long installations |
| Number of power injection points | Usually higher | Moderate | Can be significantly reduced depending on the strip model |
| 20–50 m runs | Usually impractical | Typically require additional power injection points | Specially designed products are available for very long lighting runs |
| Professional applications | Limited | Very broad | Hotels, retail, restaurants, façades, offices and architectural lighting |
48V COB LED Strips – A Continuous Line of Light Without Visible LED Dots
COB LED technology uses a very high number of miniature LED chips positioned closely together and covered with a continuous phosphor layer. This produces a much more uniform line of light than many conventional SMD LED strips.
This is particularly important in modern linear lighting installations where the LED profile is shallow and the diffuser is directly visible. A proCOB® 48V COB LED strip can therefore create an elegant and visually continuous line of light in ceilings, walls, furniture, recesses and architectural profiles.
Where Should 48V LED Strips Be Used?
48V LED Strip: 20 m, 30 m or 50 m?
One of the main advantages of professional 48V systems is the possibility of creating longer continuous lines of light. However, one maximum length should never be assumed for the entire category.
Different models may be engineered for approximately 10, 20, 30 or even 50 metres of continuous installation, depending on the product construction and the powering method. For this reason, always check the maximum run specified for the particular product before installation.
Professional projects should also take into account the total system power, cable cross-section, power cable length, operating temperature and the location of power supplies and controllers.
48V IP20 LED Strips – for Indoor Applications
48V IP20 LED strips are intended primarily for dry interiors. They are well suited to aluminium LED profiles, suspended ceilings, furniture installations, recesses, offices, shops and residential interiors.
48V IP68 LED Strips – for Demanding Installations
In areas exposed to moisture, an LED strip with the appropriate ingress protection rating should be selected. Selected proCOB® 48V IP68 LED strips are suitable for more demanding environments than standard IP20 products.
The IP rating of the LED strip itself does not guarantee that the entire installation is waterproof. Connections, cables, strip ends and power equipment must also be protected appropriately for the installation conditions.
How to Choose a 48V Power Supply for an LED Strip
A 48V DC constant-voltage power supply should be used with a 48V LED strip. The basic calculation starts with the strip power in W/m multiplied by the total installation length.
For example, a strip rated at 10 W/m over a 20 m installation creates a total connected load of 200 W. A suitable power supply should then be selected with an appropriate power reserve in accordance with the requirements of the specific system.
For large installations, power supply wattage should not be considered in isolation. Cable cross-section, controller current limits, equipment location and the method of distributing power throughout the installation are equally important.
48V LED strip + 48V power supply + controller + aluminium profile + cabling + connections + appropriate thermal management.
Can a 48V LED Strip Be Controlled by DALI?
Yes. A 48V system can be integrated with professional lighting control provided that the control equipment is compatible with the operating voltage and electrical load of the installation.
Depending on the project, it is possible to use DALI, DALI-2, DMX, Casambi and other building automation or Smart Home systems. Such solutions are particularly relevant for hotels, restaurants, offices, commercial premises and modern residential projects.
When choosing the controller, check not only the control protocol, but also the supported voltage, number of channels, maximum current and total connected load.
Which Aluminium Profile Should Be Used with a 48V COB LED Strip?
When selecting an aluminium profile, first check the PCB width of the LED strip and the internal mounting width of the profile. The strip must fit comfortably inside the mounting channel.
The aluminium profile also performs thermal and mechanical functions: it helps dissipate heat, protects the LED strip and allows the use of an appropriate diffuser.
Combined with a COB LED strip, the correct profile can create a very clean, continuous line of light, especially when the profile depth and diffuser type are properly selected.
48V LED Lighting for Architects, Installers and Lighting Designers
proCOB® 48V LED strips are particularly suitable for projects where linear lighting is not merely a decorative feature, but an integral part of the architecture.
Long lighting lines can be integrated into ceilings, walls, furniture, corridors, commercial spaces and façade elements. A correctly designed 48V system can also reduce the number of power injection points and simplify electrical installation.
FAQ – Frequently Asked Questions About 48V LED Strips
What is the advantage of 48V in an LED strip?
At the same power level, a higher voltage means lower current. This helps reduce cable losses and makes long LED installations easier to design.
Can a 48V LED strip be 50 metres long?
Yes. Specialist products are available for very long runs, including selected proCOB® LED strips intended for installations of up to 50 m. This does not apply to every 48V LED strip, so the technical specification of the individual product must always be checked.
How many metres of 48V LED strip can be powered from one point?
There is no single value that applies to every product. Maximum run length depends on the strip construction, power per metre, PCB design and powering method. This information should always be checked in the technical specification of the specific model.
Is 48V better than 24V?
Not always. For short and medium-length runs, 24V remains an excellent solution. The main advantage of 48V becomes apparent on long lines where reducing the number of power injection points is important.
Can a 48V LED strip be cut?
Yes, provided that the manufacturer has designed the strip to be cut. Cuts must only be made at the marked cutting points, and the cutting interval depends on the specific model.
Does a 48V COB LED strip have visible LED dots?
COB technology uses a very high density of LED chips positioned close together, producing a significantly more uniform line of light than conventional low-density LED strips.
Which power supply should be used with a 48V LED strip?
A correctly sized 48V DC constant-voltage power supply should be used. Its required power depends on the strip's wattage per metre and the total length of the installation.
Can a 48V LED strip be dimmed?
Yes. A suitable controller or power supply compatible with 48V and the connected electrical load must be used.
Can a 48V LED strip work with DALI and DALI-2?
Yes, when a suitable control device designed to operate with the 48V system is used. DMX, Casambi and other building automation systems can also be integrated.
Can a 48V LED strip be used outdoors?
Yes, provided that the specific model has an ingress protection rating appropriate for the installation environment. Selected 48V IP68 LED strips are available for applications requiring a higher level of protection.
Why proCOB®?
proCOB® focuses on professional LED solutions where not only luminous output matters, but also light quality, the appearance of the lighting line, the ability to operate over long runs and integration with a complete lighting system.
The 48V range includes solutions for both standard indoor applications and more demanding projects requiring long runs, COB technology, appropriate ingress protection and professional lighting control.
If the project requires a long LED strip, a continuous line of light, fewer power injection points, COB technology, IP20 or IP68 protection, or integration with DALI, DMX or Casambi, a proCOB® 48V system is a solution worth considering at the lighting design stage.