The Magicshine Seemee 180 V2.0 is a revamped version that includes major improvements such as USB-C connectivity and a new ECO mode with a battery life of up to 134 hours .Very similar to its sister Seemee 100, the Seemee 180 is a powerful rear safety light for road, urban and mountain cyclists, with wide visibility, brake sensor and low-power mode.Features:- Modes: 1 Constant Mode with three brightness settings and 4 Main Flash Modes.- Optional Brake Sensor: 180L brake light for three seconds, which also activates sleep mode after 5 minutes of inactivity.- Low Battery Mode: Battery saving mode is activated when the battery is at 5% and lasts for 20 minutes.- Battery life from 1.5 hours to 134 hours depending on the light mode setting.- USB-C Rechargeable (non-replaceable battery).Specifications:- Waterproof: IPX6- Lumens: 180 L.- Dimensions: 27 x 17 x 73 mm- Weight: 35 gr- Visibility angle: 260º of light, visible up to 3000m.