1Quality Analysis of LED Lighting Products for Government Projects (Ⅰ)ZHANG Wei, LIU Qian, HUA ShumingSpecial Study1-52Research of LED Lighting Control System ModelSHEN Zhonghong, YANG Lin, JIANG ChunxuSpecial Study6-93Preparation Method of Densified Alumina for Sapphire GrowthHE KeSpecial Study10-134The Modeling and Simulation of High Pressure Sodium Lamp Electronic BallastGUO Yin, JIA WenchaoExperience Exchange14-185Optimal Structure Designing of Radiator in LED LightsRUAN Youliang, YAN Zhuanfang, YAN Xi, FANG LiangExperience Exchange19-236Luminescent Property and Application of R2MgSi2O7∶Eu (R=Ca, Sr, Ba) PhosphorsWANG Xifeng, XIA WeiTechnique Improvement24-277Development of Elliptic Shape Metal Halide Lamp Arc Tube Automatic Production LineLI ZenggaoTechnique Improvement28-308Comparison of Color Differences between MacAdam Ellipse and Rhombus for LED Lighting ProductsLI Zili, SHAO Yanning, HUANG Hong, HUANG CanlinStandard & Testing31-369Vehicle-mounted Road Light Spectrum Detection System Based on CCD SensorZHAO Ming, ZHU Jianan, TAO Jun, CHEN Shangzhi, YOU Yuan, QIN DaweiStandard & Testing37-3910Analysis and Testing of the Blue-ray Hazard on LED Lighting ProductsCHEN ZhizhongStandard & Testing40-43