Lumintop Tool AA 2.0
This little light has been wonderful for me for over three years. It's always in my pocket. I have taken it on multiple thru hikes now. Clips onto my hat very securely. I wear it as a cycle commuting head light. It's just perfect. And affordable!
Putting the magnetic twist tailcap on made it one of my favorite lights and I carry it every day. Makes it ~10mm shorter too