1.certification: CE,GS,RoHS,ETL,LVD,EMC etc
2.tri-color phosphor powder ,A class
3.voltage:110-130v/220-240v

4.wattage:7w,9w,11w,15w,18w,20w,23w,25w,30w etc

5.color temperature:2700K/6400K/4100K etc

6.lamp cap:E14/E26/E27/B22

Negative ion is used for cleaning the air using negative ions.

This means you equip a light bulb with a negative ion generator.

That makes X amounts of negative ions when the power is on.

To make this cleaning even better there was invented a liquid solution called titanium oxide this we can add to the light bulbs to get a secondary cleaning effect as well.

Following the tests that has been done the effect in a controlled environment was around 18% cleaning effect over 1 hour.

Now this does not mean that any room will have that effect, as there are many things that can be changed.

Open a window in your home and most of that cleaning effect is lost.

However if you use your lamp at night time and let it burn all night you can smell the difference in the morning.