Glint 100 is a super small, light weight, portable, convenient USB rechargeable signal light from Magicshine.
100 lumens of maximum output is produced by 6xSMD LEDs. Mode switching is done by a mechanical hall sensor. High, Low, Flash and Intelligent work modes.
Intelligent mode works similar to what is currently used in MJ-819. Glint 100 is ambient light sensitive, especially infrared, during daytime or busy city streets, or when you have your bike parked, the light will go into sleep mode, any vibration will re-activate the unit.
You could strap it onto your handle bar or seat post. Default strap mount is built with large contact area using silicone for a solid and secure grab.