The rebirth of an iconic bicycle light, the Frog Rear Bike Light : bright, versatile & fun. A design that millions of riders around the world have come to love. Powerful enough for everyday commuting or used to complement an exisiting lighting set-up. No Ordinary Bike Light Taking cues from Knog’s more advanced lights, Frog is designed with Chip on Board LED technology, enabling a high intensity light that's compact, low profile and packed with features. Punchy 20 lumen output Integrated flexible mounting system 9 eye-catching modes Water resistant with IP65 rating Super lightweight at just 20 grams USB-C rechargeable (cable not included) Curved lens provides side illumination Battery level indicator Up to 60 hour runtime Simple one-button operation Ava.