Panoramic view of LED lighting product certification Certification Core role Applicable product types Market access value CE Legal sale in the European Union All LED lamps and driver power supplies The basic threshold for entering the European market DLC North American energy Efficiency subsidy Commercial LED industrial and mining lights, street lamps Obtain the...

Early Theories and Discoveries (Early 20th Century - 1960s) The 1950s: Breakthroughs in semiconductor research In the 1950s, research institutions such as Bell Labs in the United States began to conduct in-depth research on semiconductor materials, especially III-V group compound semiconductors (such as gallium arsenide GaAs and gallium phosphide GaP). These materials possess Electroluminescence...

I. Key Lighting Design Calculations (Practical Formulas) 1. Lumen Method Formula (Determining Fixture Quantity) \[ N = \frac{E \times A}{\varphi \times U \times M} \] N: Number of fixtures E: Target illuminance (lux) A: Area (m²) ϕ: Luminous flux per fixture (lumens, e.g., 24,000 lm for a 200W LED) U: Utilization factor (0.4–0.8; lower...

Industry Standards and Regulations (Mandatory Compliance) OSHA Standards (USA) General industrial warehouse minimum illuminance: 20 lumens/sq.ft (200 Lux) (for aisles and non-precision work areas). Precision operation areas: Recommended ≥ 50 lumens/sq.ft (500 Lux). IESNA (Illuminating Engineering Society of North America) Standards Storage areas: 100 - 300 Lux (10 - 30 lumens/sq.ft). Sorting/packaging areas: 300...

Definition A lighting driver is an electronic device used to control and regulate the power supply of lighting equipment, such as High Bay LED lights. It plays a crucial role in the lighting system, ensuring that the lighting equipment operates stably and efficiently. Working Principle Its main function is to convert the input power...

When shopping for LED lighting, you might notice terms like 120 degree beam angle. But what does beam angle mean, and why does it matter? For homeowners, DIY enthusiasts, and lighting buyers in the U.S., understanding light distribution is key to choosing the right fixture for your space. A 120 degree beam angle describes...

Picking the right lighting can make or break a space, but when it comes to 5000k vs 4000k, which is brighter? Understanding 4000k light color and 5000k light color is key for homeowners, DIY enthusiasts, and lighting buyers across the U.S. Both 4000k color temperature and 5000k color temperature offer unique vibes, but their...

To comprehend light’s role in both natural phenomena and human applications, it is essential to explore the visible spectrum—the narrow band of electromagnetic radiation detectable by the human eye. While scientific interpretations of light’s interaction with human perception continue to evolve, established principles and properties provide a robust framework for understanding its nature. By analyzing...

LED Lights As the leaves begin to change and the days grow shorter, autumn ushers in a season of renewal. GGJIA is always working on light improvements and upgrades for different needs. In 2024, several innovative models stand out for their enhanced features and performance. In this article, we will gather to present the...