Features of 3LEDs White Color LED backlight modules
1. Three SMD2835 LEDs in one module
The YS-MA3331 combines three high-efficiency 2835 LEDs in a single module, providing up to 184 lm of luminous output from a compact 1.08W unit. This configuration is suitable for signage projects that require greater output from each backlight module.
2. Suitable for 4–16cm light box depth
The optical design is intended for light boxes with approximately 4–16cm depth, making the MA3331 suitable for a range of shallow and medium-depth illuminated signage structures.
3. Constant-current design
The integrated constant-current design helps maintain stable LED operation across connected modules, supporting more consistent brightness throughout the illuminated sign.
4. Cascadable LED module design
The standard cascade quantity is 20 modules. The specified maximum reaches 20 modules with one-side power supply and 40 modules with two-side power supply, allowing the module arrangement to be adapted to different sign sizes and wiring configurations.
3LEDs White Color LED backlight modules Dimensions
3LEDs White Color LED backlight modules Layout Density Guidelines
These tested layout density guidelines apply to our High Efficiency LED Modules for backlit sign and light box builds. Use the table below to find recommended LED spacing, units per square meter, and expected surface illuminance based on your light box thickness, so you can design a uniform, well-lit sign with accurate material and cost planning.
| Light Box Thickness(mm) | LED Spacing(mm) | Installation density(PCS/m²) | Surface illumination(Lux) |
| 40 | 100*60 | 160 | 6000~9000 |
| 60 | 140*80 | 91 | 3500~4000 |
| 80 | 180*120 | 51 | 2150~2700 |
| 100 | 200*160 | 31.5 | 1300~1500 |
| 130 | 220*200 | 22.5 | 1000~1300 |
| 160 | 220*200 | 22.5 | 1000~1300 |
Remark:
(1) The above lighting data is tested by this module 6000K color temperature
(2) The thickness of the acrylic whiteboard is 2.5mm, and the light transmittance is 54.4%;
(3) The luminance of this example is the lowest luminance value under the condition that the thickness of the surface is uniform;
(4) The above data is for reference only;
3LEDs White Color LED backlight modules Wiring Diagram & Installation Guide
Recommended Applications for 3LEDs White Color LED backlight modules
1. Backlit light boxes
Suitable for 4–16cm deep light boxes, where multiple modules are positioned behind the sign face to create broad and consistent illumination across the display area.
2. Channel letter illumination
The 3-LED configuration provides higher output per module for illuminated channel letters, helping sign manufacturers achieve the desired brightness with a suitable module layout.
3. Indoor and outdoor illuminated signs
The combination of IP67 protection and multiple white color temperatures allows the module to serve different signage environments, from indoor retail displays to suitably protected exterior installations.
4. Building and architectural signs
Packaging & Shipping Information for 3LEDs White Color LED backlight modules
| Item No. | Qty Per bag（PCS） | Per/Carton(Bag) | Total Qty(Bag) | GK（Kg/Carton） | Dimension of outer carton（mm） | ||
| L | W | H | |||||
| YS-MA3331 |
100 |
14 |
1400 | 20 | 520 | 340 | 280 |
Professional 3LEDs White Color LED backlight modules 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.
3LEDs White Color LED backlight modules Quality Control Process
We apply strict quality inspection standards throughout production to ensure stable performance and reliable quality before shipment.
