The lights apply with high-quality SMD 3014, 3528, 5630, 7070. By using the light guide plates with over 80% of light ratio, the maximum of luminous flux is 701m/w of lighting efficiency. It could replace fluorescent recessed panel. Due to advanced lighting guidance technologies, the light distribution could be uniformed perfectly. And the operating life is more than 40,000 hours. The product is widely applied to office, aisle, ceiling of houses and high class indoor illumination.