1. Lighting source: 3pcs 1W cree chip.
2. Luminous flux: 140-180lm.
3. Brightness degradation: 3-5%, 1kh.
4. Lifespan: 50000 hours.
1. Base type: E27. 2. Dimension: 50mm. 3. Operating voltage: AC90-260V. 4. Bean angle: 50/70/100 degree. 5. Temperature: -40 to 70 degree celsius.