Features of Thin Injection-Molded LED Module

1. High-Efficiency SMD2835 LED for Compact Signage

The MB4311 uses a high-efficiency SMD2835 LED and reaches up to 140 lm/W luminous efficacy, providing a practical combination of brightness and power efficiency in a single compact module. Its 0.5W power rating makes it suitable for signage projects that need reliable illumination without unnecessarily increasing the total electrical load.

2. Thin and Lightweight Injection-Molded Housing

The MB4311 uses a back injection-molded structure to create a thin and lightweight module body. This construction makes the module easier to position inside compact sign cabinets while providing a clean, integrated appearance. It is especially suitable where the internal space of the light box is restricted.

3. Aluminum Substrate for Better Thermal Management

An aluminum substrate helps conduct heat away from the LED and maintain stable operation during continuous use. This is important for compact modules installed in enclosed light boxes, where thermal conditions can affect long-term LED performance.

4. IP67 Protection for Indoor and Outdoor Signage

With an IP67 rating, the MB4311 provides protection against dust and water ingress and can be used in appropriately constructed outdoor signage as well as indoor advertising displays. The complete sign assembly should still use suitable waterproof connections and power protection.

 

Thin Injection-Molded LED Module Dimensions

 

Thin Injection-Molded LED Module 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)
30	50*50	400	7000~10000
50	70*70	196	4000~5000
60	90*90	121	3000~4000
80	90*120	88	2000~3000

 

Thin Injection-Molded LED Module Wiring Diagram & Installation Guide

 

Recommended Applications for Thin Injection-Molded LED Module

1. Shallow Advertising Light Boxes

The MB4311 is specifically suited to 3–8cm deep single-sided light boxes, making it a useful solution for shallow advertising displays where conventional LED modules may require too much installation depth. Its wide-angle optics help distribute light across the sign face despite the limited cavity depth.

2. Retail and Storefront Advertising Signs

The compact form factor works well in storefront signs, retail branding panels and promotional light boxes where a thin internal structure is preferred. The module can be arranged within the cabinet according to the dimensions of the illuminated graphic.

3. Channel Letter Backlighting

 

Packaging & Shipping Information for Thin Injection-Molded LED Module

Item No.	Qty Per bag（PCS）	Per/Carton(Bag)	Total Qty(Bag)	GK（Kg/Carton）	Dimension of outer carton（mm）
					L	W	H
YS-MB4311	100	30	3000	12.5	520	300	360

 

Professional Thin Injection-Molded LED Module 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.

Thin Injection-Molded LED Module Quality Control Process

We apply strict quality inspection standards throughout production to ensure stable performance and reliable quality before shipment.