Company Name: Kaihui Optoelectronics Technology Co., Ltd.

Year Established: April 8, 1998 (Over 25 years of experience)

Title: Professional DIP LED Manufacturer - Bi-polar & Built-in Resistor Technology

Profile:

Established on April 8, 1998, Kaihui Optoelectronics Technology Co., Ltd. is an experienced manufacturer of through-hole DIP LED components with over 25 years of expertise.

Unlike ordinary LED suppliers, we specialize in two unique technologies that solve common circuit design, assembly, and quality challenges: Bi-polar (Non-polarity) LED and Built-in Resistor LED.


Core Technologies & Customer Benefits:

1. Bi-polar LED - No Polarity, No Flicker, No Rectifier Needed

How it works: Two LED chips bonded in anti-parallel within a single 2-pin package.

Key advantages: Works on both AC and DC - no polarity concern; eliminates AC flicker for stable illumination; no external rectifier diode required.

Customer benefits: Simplifies wiring for wire harness and switch production; lowers BOM cost by saving rectifier diodes; improves quality - fewer components mean fewer failure points and lower defect rates.

2. Built-in Resistor LED - Integration That Saves Steps, Space & Cost

How it works: Current-limiting resistor integrated inside the epoxy resin.

Key advantages: No external resistor soldering; reduces component count in switch/wire harness assemblies.

Customer benefits: Saves PCB space for compact designs; reduces assembly processes - fewer soldering and wiring steps; lowers labor and production costs; improves quality reliability - every extra process step increases defect risk; our integrated design minimizes that risk.

3. Solving AC Flicker - Stable, Eye-Friendly Illumination

The problem: Ordinary LEDs flicker on AC power, causing eye strain and poor user experience.

Our solution: Anti-parallel chip design provides continuous illumination without visible flicker on AC.

Customer benefit: Better end-user experience for switch indicators and appliance lights.

4. High Temperature Resistance - Reliable in Harsh Conditions

The problem: Ordinary LEDs degrade quickly in enclosed, poorly ventilated spaces like sealed switches and wire harnesses.

Our solution: Optimized die attach and heat-resistant materials ensure low light decay and long lifespan in high-temperature environments.

Summary of Key Customer Savings:

AreaSavings / Improvement

Component Cost

Save rectifier diodes, save external resistors

PCB Space

No space needed for external resistors

Assembly Steps

Fewer soldering and wiring operations

Labor Cost

Simplified production line

Quality/Yield

Fewer components = fewer failure points = lower defect rate

End-User Experience

No AC flicker, stable illumination



Typical Applications:

AC/DC indicator lights for switches and push buttons

Wire harness and cable assembly indicators

Control panels for home appliances

Industrial control equipment

Automotive interior illumination



Why Choose Kaihui Optoelectronics:

25+ years of LED manufacturing experience since 1998

Reduce component count - save rectifier diodes and resistors

Simplify assembly process - fewer soldering and wiring steps

Lower defect rate - fewer components means fewer quality risks

Solve AC flicker issues - stable, continuous light output

Free samples available for testing temperature endurance and assembly compatibility

Contact Kaihui Optoelectronics Technology Co., Ltd. today to discuss your DIP LED requirements or request free samples.