110 lumen front light, 50 lumen tail light Day and Night use featuring 6 modes per light Both feature SteadyPulse mode to alert motorists Both feature continuous array of LEDs for extra wide, powerful glow USB rechargeable internal battery lasts up to 100 hours (HL), 100 hours (TL) Low battery indicator alert when a charge is needed Light mode memory saves the current mode before the light is turned off Low profile, water resistant design only weighs 29 grams per light Versatite flexible mount attaches to handlebars including aerobars