The switch is the knurled ring behind head. The 1,2,3 switch is the heating regulator but it has the e/o connection at the end and can be used with a light head that has e/o fitting. GralMarine also has plain cables with e/o fitting without the regulator. I got the aluminum battery pack with delrin top/bottom but the full delrin one is nicer.Wait the switch is behind the head? Or is it the disc that has 0,1,2,3 attached to the wire
so far has it been good?
did you get the delrin upgrade cannister casing?