Hi - perhaps have a read of this tutorial on lighting circuits, it explains how to calculate if there will be a problem with the lamp flex .
Hager Guide to Klik lighting circuits - https://storage.electrika.com/flips/0330-klik-guide-15-a/index.html#
Hager Guide to Klik lighting circuits - https://storage.electrika.com/flips/0330-klik-guide-15-a/index.html#