Product Description: 1. Input Voltage:85-265V AC or 12V DC2. Brightness degradation: 1%-3%/1kh3. Lumen Maintenance: 80% at 50K Hours4. Color rendering index: ≥80Ra5. Power Factor: ≥0. No UV or IR radiation7. Operate Temperature: -40°C / +60°C8. High shock / vibration resistant 三. Advantages:1. Environment friendly: No mercury and others harmful materials2. No flicker RF interference, No buzzing noise, instant delicate beginning and low heat3. Widely used for vllas, gardens, parks, squares and so on4. High Energy-efficient: completely 20% strength consumption of halogen lamp and incandescent lamp.