Sylvania E14 LED bulbs have a small Edison screw-fitting (SES) and replace conventional E14 bulbs. Important to know is that switching to LED is rather easy. Simply take out your current light and place the Sylvania E14 LED bulb. There are no changes in your fixtures needed. When buying a new bulb has, try to stay as close as possible to your current light source. For example, check the color and wattage and keep this the same with your new light source. If your current light source is a conventional one, you can me use of the "wattage of old bulb" filter on the left of this page. By doing so, you will keep the light effect your current light source has with your new Sylvania E14 LED bulb.