Magicshine Seemee 50 Mag Taillight Stay Lit The Seemee 50 Mag is a small 50-lumen light with both red and white LEDs, so you can run it as a taillight or a front daytime light. It syncs its flash pattern with nearby compatible taillights, which helps a group show up as one clear signal on the road. It mounts to a seatpost, a Garmin-style mount, or compatible Lumos helmets by magnet. Features Dual red and white LEDs, works as a taillight or a front light Peloton Sync Flash, matches flash patterns with nearby compatible taillights Light Sync Control, links to compatible Magicshine front lights for one-touch remote control350m Ah battery, up to 18 hours of runtime, with USB-C charging Lock function and battery indicator, prevents accidental activation and shows power at a glance Magnetic and bracket mounting, seatpost bracket, Garmin-style mount, or Lumos Ultra Fly and Aero helmets IPX6 waterproof, ready for wet rides SPECIFICATIONSIntended Use Road, Commuting, Group Rides Max Output50 lumens Light Color Red and white Modes5Battery350m Ah Max Runtime18 hours Charging USB-CWaterproof Rating IPX6Mount Seatpost bracket, Garmin-style mount, or magnetic helmet mount Weight38g | Magicshine | Seemee 50 Mag Taillight 50 Lumens