The rebirth of an iconic bicycle light, the Frog Front 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 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 Features: Punchy 40 lumen output COB LED Technology - Efficient Chip on Board (COB) LEDs provide maximum brightness level for up to 90% of the battery burn time Advanced Side Visibility - COB technology allows the LEDs to be arranged on a curved board, projecting light from the sides & adding to rider safety One Button Operation - A single large, easy press button makes the operation of these lights super simple, even in gloves Integrated Flexible Mounting System - With no tools required to mount Frog and featuring an integrated flexible strap, Frog is easily mounted anywhere Specification: Bulb Type - Chip on Board (COB) LEDs Light Max Output - 40 lumens Run Time - Up to 80 hours Programmable With ModeMaker - No Waterproof - Yes, IP65 rating Light Modes - 9 Rechargable - Yes, USB-C Low Battery Indicator - Yes Fits Handle Bars - 22 - 32mm+ diameter, plus head tubes to 7.9 inches Dimensions - H: 80 mm x W: 35 mm x L: 42 mm Weight - 20 grams Operating Temperature - -20 to 50 °C / -4 to 122 °F Strap Material - Medical grade silicone Optimum Charging Temperature - 20 to 22 °C / 68 to 72 °F (Room Temperature)