12V LED fitting for 25mm Aluminium Box Tube - for 30mm LED arrays.

I use 25mm aluminium box tube for the horizontal bars on my roof racks.
I designed these to simply slot onto them, and plug into a cigarette lighter socket. as I have one of these on a secondary battery as well.

Simple assembly - you will need:
1X 3X20mm nut and bolt per assembly
1X LED array
Some appropriate wire (grommet hole is 4mm)

The LED units can be purchased as 12v halogen replacements from Jarcar dealers in Australia - and are polarity corrected, or you can find various su