
Features of CCT Tunable White Rigid LED Light Bar
1. Adjustable Color Temperature for Flexible Lighting Effects
The DF90 CCT Series integrates warm white and cool white SMD2835 LEDs to provide adjustable color temperature from 2700K to 6500K. By changing the ratio between warm and cool white output, users can create different lighting atmospheres for advertising displays, retail environments and commercial spaces.
2. Uniform Backlighting with 175° Wide Beam Angle
The DF90 CCT Series adopts a 175° wide viewing angle design, allowing light to spread evenly throughout the illuminated area. This optical design helps minimize dark zones and hotspots, creating a smooth and professional backlighting effect for signage and display applications.
3. Aluminum PCB Design for Better Heat Management
Built with a durable aluminum PCB, the LED bar provides efficient heat dissipation during continuous operation. Improved thermal performance helps maintain stable brightness output and extends the service life of the LEDs in commercial lighting environments.
4. Single-LED Cutting for Customized Light Box Sizes
Each LED bar supports cutting according to the designed LED unit, enabling flexible adjustment for different cabinet sizes and shapes. This feature allows manufacturers to optimize material usage while creating customized illuminated displays.
CCT Tunable White Rigid LED Light Bar Dimensions

CCT Tunable White Rigid LED Light Bar Typical Lighting Test Data
The table below shows typical test results of DF90 series shutter LED bars for light boxes of different depths. It includes recommended LED spacing, required bar length per m², achievable surface illumination and power consumption, for your project layout design and cost estimation reference.
| Light Box Thickness(mm) | LED Spacing(mm) | Qty of LED Bar | Surface illumination(lux) | Power(W/㎡) |
| 40 | DY=100 | 10 | 8500-9000 | 120 |
| 50 | DY=100 | 10 | 7500-8000 | 120 |
| 60 | DY=150 | 10 | 6500-7000 | 120 |
| 80 | DY=150 | 7 | 4500-5000 | 84 |
| 100 | DY=200 | 7 | 4000-4500 | 84 |
| 120 | DY=200 | 7 | 3000-3500 | 84 |
CCT Tunable White Rigid LED Light Bar Wiring Diagram & Installation Guide
1. The outlet wire of the diffuse reflection terminal connect board is 18AWG, and the Max current is 10A;
2. When the terminal connect board of diffuse reflection has a single outlet connected to the power supply (DC12V), a maximum of 10PCS LED bar with 24LEDs can be connected;

Recommended Applications for CCT Tunable White Rigid LED Light Bar
1. CCT Adjustable Light Boxes
The DF90 CCT Series is ideal for illuminated light boxes requiring different color temperatures for various environments. Users can switch between warm white and cool white effects to match brand displays, advertising graphics and interior design requirements.
2. Single-Sided Advertising Signage
Designed for 4-15 cm single-sided light boxes, the DF90 CCT Series provides uniform illumination for advertising panels, promotional displays and commercial signage while allowing flexible color temperature adjustment.
3. Airports, Subway Stations and Public Facilities
4. Custom Signage Manufacturing

Packaging & Shipping Information for CCT Tunable White Rigid LED Light Bar
| Item No. | Qty Per bag(PCS) | Qty/Carton(Bag) | GK(Kg/Carton) | Dimension of outer carton(mm) | ||
| L | W | H | ||||
| YS-DF90 324-196-TW |
4 pcs |
200pcs (50bags) |
14.6 | 1050 | 170 | 170 |
| YS-FD9A 505-950-TW | 2pcs | 17.9 | 1000 | 170 | 170 | |

Professional CCT Tunable White Rigid LED Light Bar Manufacturer & Supplier
Founded in 2013, YESUN LED is a Shenzhen-based manufacturer specializing in LED signage and commercial lighting solutions. With 5,000㎡ of automated factory space, dedicated SMT lines, and strict full-process QC, we support OEM/ODM projects for customers in over 100 countries. To learn more about our team, factory, and production capabilities.
Product Certifications & Compliance
Our products comply with international standards including UL, ETL, CE, and RoHS certifications to support different market requirements.
CCT Tunable White Rigid LED Light Bar Quality Control Process
We apply strict quality inspection standards throughout production to ensure stable performance and reliable quality before shipment.



















