Armoured cable offcuts (Presteigne LD8)

I need armoured cable offcuts

My Japanese garden that I have posted about ( and I been given so many plants and rocks for 😃) is going well. Carpets down to kill weeds, big rocks about to go ion. 14ft rescued Acer went in yesterday)

I need to do lighting next (which will be subtle and only used early evening sometimes, so one can walk through to pagoda, and very energy efficient)

So I need armoured cable. But it can be offcuts as will need to make junctions in circuit.

Really no piece is too short as I have about eight pagoda lanterns to light.

Any waterproof boxes would be great too.