Interest collect for a new Sofirn design: tube style18650, magnetic ring control, USB-C charging, 500 lm max (AKA grandma light)

The existing DV-S9 is a rather beautiful indigo color (the plain blue in the pic doesn’t do it justice), and the red ring is a retainer to keep the slider from falling out, but also gives it a nice accent.

As for ring-lights, the WW SD02/WK20 would be a good starting point. Just remove the detentes and make it continuously-variable instead of discrete steps.