First, the product features: 1. luxury metal structure, in line with common light steel frame ceiling size, versatility. 2. The light source using a low power high efficiency LED light source, reduce energy use. 3. The light source is stable, no flicker, no ultraviolet, does not affect health. 4. Extremely soft high color light more to enhance work efficiency. 5. High-efficiency lighting output, greater than 90% efficiency, efficient use of energy and reduce energy waste. 6. drive built-in, small size, high precision constant current, ensure safe and reliable LED work. 7. Product long life, LED life of up to 30,000 hours. Second, using the occasion: offices, meeting rooms, library interior lighting, schools, hospitals and other light steel frame ceiling system