Splitter, splitter for E27 bulbs 7 sockets | Lightning \ LED GROW bulbs \ splitters for e27 bulbs | GrowTent.pl
Kompassswc 3 in 1 E27 Lamp Holder Lamp Splitter E27 to E27 Bulb Socket Bulb Adapter for Studio Lamp Photo Lamp Studio Light (Pack of 1) : Amazon.de: Lighting
Bailey Lampholder Splitter E27 2xE27 Black - Svetila.com