A commercial lighting project required longer continuous LED strip runs while reducing visible brightness drop and the need for frequent power injection points.
The project focused on evaluating suitable voltage, power, PCB design and run length to achieve more consistent illumination over longer installations.
Project Background
Standard 24V constant-voltage LED strips can show increasing voltage drop over longer distances, especially when the installation requires continuous runs without multiple power injection points.
For this project, the key requirement was to achieve a longer continuous COB LED strip installation while maintaining practical brightness consistency from the beginning to the end of the run.
Key Project Requirements
Long Continuous Run

The installation required a significantly longer continuous LED strip length than a typical 5-meter configuration.
Reduced Brightness Drop

Visible brightness differences between the beginning and end of the strip needed to be minimized.
Simplified Power Distribution

The project aimed to reduce the number of power injection points and simplify installation wiring.
High-Quality Light Output

The COB structure was selected to provide smooth, dot-free illumination suitable for architectural and commercial applications.
Technical Evaluation
Run length, voltage drop and brightness consistency are closely related to operating voltage, PCB copper design, power consumption and total installation length.
For longer installations, increasing the system voltage or using a long-run design can help reduce current and voltage loss compared with conventional configurations.
The final product configuration therefore needed to be evaluated as a complete system rather than considering LED density or wattage alone.
Validation Process
Requirement Review
Confirm the required run length, installation method, target brightness and available power supply configuration.
Product Configuration
Select a suitable COB LED strip design based on voltage, PCB width, power and continuous-run requirements.
Long-Run Testing
Test the LED strip across the required continuous length and check voltage, brightness consistency and operating performance.
Project Confirmation
Review the test results and confirm whether the selected configuration meets the project requirements before mass production.
What Was Evaluated
Voltage Drop
Voltage was checked at different points along the LED strip to evaluate electrical loss over the full run.
Brightness Consistency
Visible light output from the beginning to the end of the strip was compared during long-run operation.
Power Consumption
Total and per-meter power performance were reviewed according to the selected configuration.
Operating Temperature
Temperature performance was considered during continuous operation, especially for longer installations.
Installation Length
The product was evaluated according to the actual required continuous run rather than a short sample only.
Power Supply Layout
Power supply and wiring requirements were reviewed to reduce unnecessary installation complexity.
Project Solution
For longer installations, a DC48V COB LED strip configuration can help reduce current and voltage drop compared with conventional lower-voltage long runs, while allowing continuous installation lengths of up to 20 meters depending on the exact model and operating conditions.
Project Takeaway
Long LED strip installations should not be evaluated only by nominal wattage or LED density. Voltage, PCB design, power distribution and total run length all affect the final lighting performance.
Testing the actual continuous installation length before mass production helps identify voltage drop and brightness differences before the product is installed on site.
Planning a Long-Run LED Strip Project?
Send us your required run length, voltage, power, CCT, installation method and project quantity. Our team can help evaluate a suitable long-run COB LED strip configuration.
