1.  6pcs high efficiency LEDs; 
2.  Rated Luminous Flux: 750lm/580lm; 
3.  Viewing Angle: 55~70 degree; 
4.  Color Temperature:5500K-500k/3500k-300k; 
5.  Central Light Intensity: 614cd/476cd; 
6.  Color Render Index:   ＞70; 
7.  Work Temperature: -20℃ ~ +50℃.