In the 1960s, scientists developed LED based on the principle of semiconductor pn junction luminescence. The LED developed at that time was made of GaAsP, and its luminous color was red.

After nearly 30 years of development, the familiar LED has been able to emit red, orange, yellow, green, blue and other colors. However, the white LED used for lighting was developed only after 2000.

Best Restaurants Near Canton Fair,Guangzhou

Every session of the Canton Fair attracts thousands of international buyers to Guangzhou — and…

4 days

How to Get to Canton Fair | Airport, Metro & Taxi Guide

If you are planning your visit and wondering how to get to Canton Fair, understanding…

6 days

Best Hotels Near Canton Fair 2026: Accommodation & Booking Guide

Finding a hotel near Canton Fair can be challenging, especially during peak exhibition periods when…

2 weeks

Yiwu Small Commodities Manufacturing Guide | Sourcing for Global Importers

1.Overview of Yiwu’s Small Commodities Manufacturing Yiwu has evolved from a small inland trading town…

2 weeks

Ningbo Plastic Products & Small Appliances Manufacturing Guide | Sourcing for Global Importers

Discover the incredible opportunities in Ningbo Plastic Products Wholesale! This guide dives into Ningbo's thriving…

1 month

Shantou Toy & Plastic Goods Manufacturing Guide |Sourcing for Global Importers

Explore Shantou’s toy manufacturing strengths, categories, competitive pricing, and the types of buyers suited for…

2 months