Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS

Certificates of Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS : 

About us:

1.Why should I choose Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS ?  
Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  present many advantages compared with traditional incandescent and fluorescent lights:

1)Lower enerrgy consumption:LEDs produce more light per watt than incandescent and fluorescent.  
2)Longer lifetime: LED's may last up to 50 000 hours in many cases, much longer than the incandescent and fluorescent lights.  
3)Faster switching: Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  light up very quickly. A typical red indicator Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  will achieve full brightness in microseconds.  
4)Environment friendly:unlike fluorescent lamps,LEDs do not contain mercury.
2.Are Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS as bright as fluorescent and incandescent?  
Unlike conventional light sources such as incandescent, halogen or fluorescent, the light from an Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  is directional. Because of this nature, Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  can appear almost twice as bright as typical light sources.

3.Are Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  bulbs/tubes easy to install?  
Yes. Installing or changing an Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  light bulb/tube is like changing any other bulb/tube, with LEDs’ long lifetime that you’ll need to change it far less often!
4.What is the difference between warm white and cool white?  
Lights come in different 'colour temperatures', warm white is between 2500k and 3500k and has a yellowish glow.  Cool whites are between 5500k and 7000k and contain more blue tones; they are closer to the colour of daylight and are good for concentration.
5.What is your warranty policy?  
All of our Full spiral 3U 4U energy saving lamp 11w 15w 20w 23w E27 base cfl lighting WITH CE ROHS  products come with a two-year warranty.