1. 288pcs high efficiency LEDs; 2. Rated Luminous Flux: 4700lm; 3. Viewing Angle: 100~120 degree; 4. Color temperature: 6500K-500K; 5. Central Light Intensity: 1700cd; 6. Color Render Index: > 75; 7. Work Temperature: -20℃ ~ +50℃.