Specification: 7W, 9W / 50HZ
Base: GU10, E26-27, E14
Color of back cover : white, black, transparent
Color temperature of the tube: 2700K, 4100K, 6400K
Luminous flux: 250-300lm / 7W, 270-320lm / 9W
Light effect: 20-25lm / w
Color rendering index: 70-80 Ra
Power parameter: 240V 120V Current: 50mA±5 / 7W, 80mA±5 / 9W
Power factor: 60%±5
Life time: under the following factor
1)Environment temperature+ 40oC ~ -40oC
2)Environment humidity ≤ 65 %
3)Input voltage: ≯nominal voltage
4)Continuous service:≯ 20 hrs/day
5)Service life: 5000hrs
6)Special design of the spiral bulbs
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