opening up the future of <br> intelligent optoelectronics
LONGJI GROUP
opening up the future of
intelligent optoelectronics

Shanghai Smart Manufacturing, Craftsmanship in Lighting

Longji Group

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Refined research on special light
LONGJI GROUP
Refined research on special light

Shanghai Smart Manufacturing, Craftsmanship in Lighting

Longji Group

More →
Craftsmanship in the <br>development of LED chips

Longji Group

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PRODUCT CENTER

Core Products：LED Explosion-Proof Lighting、LED Aerospace & Aviation Lighting、Smart Lighting Control Systems、Intelligent Explosion-Proof Electrical Equipment、Explosion-Proof Conduit Fittings

The company specializes in the R&D and production of specialty LED lighting and IoT-based smart electrical products.

Factory Honors

Factory snapshot

ABOUT US

Shanghai QINSUN Electric Co., Ltd.

Introduction of QINSUN

Shanghai QINSUN Electric Co., Ltd. founded in Shanghai Songjiang—the origin of the G60 Science and Technology Innovation. Company boasts a founding team with years of extensive R&D and manufacturing experience. Leveraging Shanghai's abundant talent pool and innovative mindset, the company specializes in the R&D and production of specialty LED lighting and IoT-based smart electrical products.

Core Products

◆ Explosion-Proof LED Lighting

◆ Explosion-Proof Electrical Equipment

◆ Explosion-Proof Electrostatic Safety

◆ LED Aviation Lighting

◆ Industrial lighting

Applications

Widely used in critical industries related to national security and economic development, including:

◆ Oil & Gas, Petrochemical

◆ Coal & Power Generation

◆ Biopharmaceuticals

◆ Metallurgy & Smelting

◆ Aerospace & Defense

Global Market & Certifications

With a strong focus on international markets, our products comply with major global certification standards, including:

◆ UL (North America)

◆ ATEX (EU)

◆ IECEx (International)

Our solutions are exported to Southeast Asia, Europe, North America, and beyond.

Quality & Management

◆ ISO 9001-certified manufacturing processes

◆ Strict adherence to Chinese National Standards (GB) and IEC International Standards

◆ Commitment to delivering premium products and services

Our Mission

We uphold the principles of "Technology as Our Core, Quality as Our Lifeblood." We look forward to collaborating with partners worldwide to build a brighter future together.

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APPLICATIONS

Widely used in critical industries related to national security and economic development, including: Oil & Gas, Petrochemical , Coal & Power Generation , Biopharmaceuticals , Metallurgy & Smelting , Aerospace & Defense

Longji Group

Oil & Gas, Petrochemical

Ensure the safety and efficiency of the entire process, resist interference and stabilize production

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Longji Group

Coal & Power Generation

Intelligent transformation improves efficiency and supports the clean energy system

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Longji Group

Biopharmaceuticals

Stable supply of high-quality electricity, safeguarding precision production and reducing costs

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Longji Group

Metallurgy & Smelting

Stable control connection ensures production under harsh working conditions

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Longji Group

 Aerospace & Defense

Provide energy and signal transmission for equipment to support task execution

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Southeast Asia
Southeast Asia
Europe
Europe
North America
North America
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Global Market

Certifications

Our solutions are exported to Southeast Asia, Europe, North America, and beyond.
With a strong focus on international markets, our products comply with major global certification standards, including:

◆  UL (North America)

◆ IECEx (International)

◆  ATEX (EU)

More →

Blog

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LED Display Power Distribution System for Main Components of LED

LED Display Power Distribution System for Main Components of LED

Normally, when the power consumption of the display screen is ≤ 5kw, AC 220V, which is a single-phase three wire power supply, can be used.

2026-04-02
2026-04-02

What is LED? What are the advantages and disadvantages of LED?

LED：Light-emitting diode， Light emitting diode is a semiconductor electronic component that can emit light. The LED referred to in the display industry specifically refers to LEDs that can emit visible wavelengths.

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How to make airport pole light management both energy-efficient and worry free?
2026-04-02

How to make airport pole light management both energy-efficient and worry free?

Driven by the dual carbon target, the energy-saving renovation of airport flight areas has changed from an "optional" to a "mandatory question". According to industry statistics, the energy consumption of airfield lighting accounts for about 13% to 15% of the total energy consumption of airports, while traditional high pole lights are mostly timed to start and stop, without dimming ability, and still maintain full power operation during reduced late night flights, resulting in significant energy waste.
What is the IP protection level? Understanding the Dust and Waterproof Grading Standards for Lighting Fixtures in One Text
2026-04-02

What is the IP protection level? Understanding the Dust and Waterproof Grading Standards for Lighting Fixtures in One Text

When choosing lighting fixtures, both professional lighting designers and ordinary consumers will pay attention to the "IP protection level" in the product parameter table. But what exactly does IP rating represent? How does it affect the safety and performance of lighting fixtures? This article provides a detailed interpretation for you.
Hidden dangers of poor heat dissipation: chain reaction of LED street light lifespan, components, and materials
2026-04-02

Hidden dangers of poor heat dissipation: chain reaction of LED street light lifespan, components, and materials

The heat dissipation design of LED street lights is often hidden inside the lamp housing, which is not easily perceived intuitively. However, once the cooling system fails or is poorly designed, the chain reaction it triggers will directly affect the reliability, safety, and economy of road lighting. This article analyzes the multiple hazards of poor heat dissipation from three dimensions.

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Shanghai QINSUN Electric Co., Ltd.

Tel:+86 21 60291786

Email：export@qinsun.com

Add: No. 1505, Xinfei Road, Songjiang, Shanghai, China

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