I’m in the SF area, so I do see Lumos helmets around now and then :-)
My favorite shout-out was from a woman in a car who followed me through a left turn. On the next block she pulled up next to me with her window down and yelled “Great helmet! Where can I get one?” I responded “Lumos, check on line…Lumos helmet” She yelled back that she would look for it, then drove off. There were a few other people in the car, so they got to hear as well.
Keep up the good work. I’m not sure what else I’d want out of my helmet; I’m not a smart-watch user, so I’m really just use the helmet for blinking lights and turn signals. I’m thinking the brake light might be useful, but worry that it might use up the battery too fast. My commute is about an hour a day, and I can usually make it through a week without charging back up.