Fuses for 20w led floodlights

[woodman-46]

I am using some 20w led floodlights to light a trade stand and each of these will be plugged into an extension cable that will be in turn plugged into the mains socket.
If I am plugging six of these into the extension cable firstly what fuses should I have on each light plug and secondly what fuse should I have on the extension cable plug.
Hope that makes sense!
Thanks

 

[Iggifer]

3a in the fittings, 13a in the extension lead.

No point fusing down the extension lead as it’ll already be fused down in the light plug. Also, you’ll likely want to use it for a hoover once the messy carpet fitters have done the gangways