Lamp adapter for converting from E27 to G9 for light bulbs, LED, halogen and energy-saving bulbs. With the numerous lamp sockets, you do not always have the right light bulb at home, this is no longer a problem, because with our lamp socket adapters you can make your existing light bulb suitable Our set of four lamp base adapters saves a lot of time and money because the annoying search for suitable and expensive light bulbs is now a thing of the past!- Set of 4- E27 to G9- Easy installation- Compatible with LED, halogen, energy-saving lamps- Ceramic with copper nickel Benefit from this economical pack of four lamp converters and enjoy stress-free light bulb replacement in the future! Please note: For safety, you should switch off the power supply before installing the adapter!