Dongguan Lanjin Optoelectronics Co., Ltd.
                                                                                                           
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21 Years
Since 2005
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Keyboard Exclusive 4028 RGB SMD LED 4027 Full Color Light LED Tri Color

Price Negotiable
Price: Negotiable
MOQ: 3000pcs
Delivery Time: 5-15 days
Brand: BOSMFC
Product Description
Keyboard Exclusive 4028 RGB SMD LED 4027 Full Color Light LED Tri Color
Product Overview

High-performance 4028 RGB SMD LED offering full-color lighting with tri-color capabilities for various industrial and commercial applications.

Key Features
  • Energy saving and environmental protection
  • Long lifespan with excellent reliability
  • Superior heat dissipation performance
  • Low light attenuation over time
  • Easy installation and integration
  • Strong anti-static capability
  • RoHS certified for environmental compliance
Technical Specifications
Parameter Symbol Color Min Typ Max Unit Test Condition
Wavelength λd Red 620 630 nm IF=5mA
Green 520 530
Blue 460 475
Luminous intensity Iv Red 600 1000 mcd IF=5mA
Green 2000 3500
Blue 600 1000
Forward voltage VF Red 1.8 2.4 V IF=5mA
Green 2.8 3.4
Blue 2.8 3.4
Viewing angle

120 deg IF=5mA
Reverse current IR
5 uA IF=5mA

Operation Temperature: -40~+85℃
Size: 4.1×2.7×2.32mm
Storage Temperature: -40~+100℃
Packing: 3000pcs/reel

4028 RGB SMD LED technical diagram and specifications
Applications
  • Mechanical keyboard lighting
  • Decorative lighting systems
  • Display screens and curtain displays
  • Signal and symbol lighting
  • Front panel backlighting
  • Full-color strip lighting
  • Status indicators and indicators
Materials and Construction
4028 RGB SMD LED material composition and construction details
Company Information

Dongguan Lanjin Optoelectronics Co., Ltd. established in 2005, a professional manufacturer in producing light emitting diode, LED digital display, SMD LED , through-hole LED and LED PCB assembly service. Covering 2,500 square meters factory plant, with modern purification constant termperature and humidity anti-static production workshop.

Our company has passed ISO9001:2015 international Quality management system certification, and now applying for ISO14001 Environmental management system certification. With 18 years development, we achieved 2 national invention patents, 12 practical new-type patents, 2 software invention patents, all products comply with the EU RoHS standard.

Lanjin has absorbed the advanced manufacturing technology of Japan, Korea and Western Europe. With a high starting point, high quality market positioning, developed high temperature resistance & long life LED. Widely used in communication equipment, swithching power supply, decorative lighting, multi-speaker, DVD and other electronics.

Lanjin always addict to the principle of “ Quality and customer first”, provide customized services according to customer’s demand. LED light the world, Lanjin lights your life!

Lanjin Optoelectronics manufacturing facility and production process
Packaging and Shipping

Inner packaging: Anti-static Bag Vacuum Packaging
Outer packaging: Standard export carton packing

4028 RGB SMD LED inner packaging - anti-static vacuum bags 4028 RGB SMD LED outer packaging - export cartons
Frequently Asked Questions
Q1: Are you a factory?
A: Yes, we are an LED factory specializing in SMD LED, through-hole LED, and LED display manufacturing in Dongguan city. We welcome your visit!
Q2: Can I get some samples for tests?
A: Yes, we welcome sample orders to test and evaluate our LED quality.
Q3: Is there any discount for bulk order?
A: Yes, we provide wholesale pricing for bulk orders and customized products.
Q4: How to choose LED light source?
A: Lumens (LM), light efficiency (LM/W), and lifespan (hrs) are very important factors when choosing LED light sources. Higher values indicate better performance. Additionally, the brand of LED chip, LED frame, and other materials will influence product reliability.
Q5: How do I process an order?
A: The order process involves the following steps:
1. Provide us with your requirements or application.
2. We will provide a quotation based on your requirements or suggest suitable options.
3. Confirm the samples and place the order. We will arrange production accordingly.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Dongguan Lanjin Optoelectronics Co., Ltd.
Location 3/F, NO. 90 Pinggang street, Zhushan , Dongcheng district, Dongguan city, GuangDong, China. 523112
Contact Person Ava Huang

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