On May 3, 10:01*pm, " wrote:
Hi, I am thinking of buying a spool of 8 gauge low voltage wires to
use with my Malibu 600W transformer for my yard. Will the 8 gauge
wires be too hard to deploy since they are so thick? Also will the
cable connectors that come with the Malibu light fixtures be able to
clamp around the wire and penetrate the sheathing?

I am using 12 gauge at this time, but the lights are pretty dimmer
since the total length is about 70'.

I have 110 ft of 12 ga malibue and notice no dimming at the end, I
think your issue is corroded connections at the lamp and wire, or bulb
base and bulb, old bulbs, and dirty lenses. Unless the 12 ga multi
wire has a many strands cut somewhere along the line. Malibue sells it
to work with 12 ga. Have you removed and gone over any lamps yet and
reconnected them in clean copper, that would be the first thing to do,
and measure voltage along the line.