1. Watts: MHDE 70W/100W/150W/250W/400W; 2. Base: R7S/Fc2; 3. High luminous efficacy, average of 80 lm/W; 4. Excellent color rendering, Ra> =65; 5. Wider range of color temperature 3000-20, 000k; 6. Excellent maintenance, long life; 7. Comfortable lighting.