1 to 2 splitter cable with Deutsch DT connector ends. Change your single plug loom to 2 plug or a double plug loom into 4 plug etc. An easy option for multiple light setups.
Total length plug to plug is 73cm, each arm is 60cm.
DT and DTP connectors are not cross compatible, have a look at image 3 to identify what type of Deutsch connector you have if unsure.