Backscatter HF-1 Strobe Easy Access Power Knob mod

The Power Level Knob of the Backscatter HF-1 strobe is too difficult to turn and adjust. Wearing gloves makes it even harder. And worse, you can't tell “By Feel” what power level position it is in. I have a solution! 

This slip-over knob pops right on top of the existing one. It slides on easily then water pressure and friction hold it tightly in place underwater. It won't easily come off during a dive or on land. I've tested it to below 110' and it worked perfectly across over 100 dives.

I have printed in PLA+, PETG and TPU. White will make the knob more visible in low light conditions. Currently, the TPU version is my favorite, but they all work equally well.