Mounting Options: Universal Mount - Action-camera-style mount fits most helmets and handlebars 22-35mm in diameter
Water Resistance: IP-67 submersible - Ingress protection rating, or "IP Rating," is a techy way to describe the level of water- and dust-proofness of a product. This light meets the IP-67 Standard, which means it is totally protected against dust/grit and fully protected against the effects of immersion between 15cm and 1 meter for 30 minutes
LED Fuel Gauge/Charge Indicator: A small, built-in LED light indicates the battery level. Green = >75%, orange = 75-25%, red = <25%