The Grid 2’fer is a high-powered front and rear light set designed to keep you visible any time of day. A quick double-click of the power button switches each light between white and red, allowing it to be used as either a front or rear light! With four mode options, you can choose high-lumen output for maximum visibility or extended run time for longer rides. The Grid 2’fer packs plenty of rechargeable power into a compact, versatile design. Specs Modes: 4 beam modes (Solid, Pulse, Strobe, Eco) let you adjust light intensity and battery runtime (front) Output/Runtime (Front mode): Solid 175 lumens, 2 hr runtime; Pulse 100 lumens, 6 hr runtime; Strobe 40 lumens, 7 hr runtime; Eco 40 lumens, 25 hr runtime Output/Runtime (Rear mode): Solid 55 lumens, 1.75 hr runtime; Pulse 35 lumens, 6 hr runtime; Strobe 20 lumens, 6.5 hr runtime; Eco 20 lumens, 22 hr runtime USB-C rechargeable - Charges via any standard USB port (charging cable included) Mounting options: Silicone strap wrap mount fits a wide variety of sizes to mount where needed. Removable pack- and belt-attachment clip Waterproof To IP-65 Standard