When I assembled landing light brackets I realize that left bracket was marked R and right has a L mark. Anyway, I rivet together 6-W-55-R, -55L, 57, and -59. And sprayed all visible parts black before installation.ThenI fitted the halogen lamp into 550013FL, the Hella-light, and mount in on brackets. The wing-tip skin, land-light and lens 6-W-5-56 and -58 was held in position with clecos. It was not an easy job to line up all skins straight and neat, but with straps and the board template from right wing, I am quit satisfied. I connect the AWG 18 wire to light and one ground wire to wing structure.