Nite Rider Vmax+ 180 ALTO Tail Light Light and Bright A good rear light will keep you visible at all hours of the day. The Nite Rider Vmax+ 180 is Nite Rider's first taillight featuring COB (Chip-on-Board) LEDs, which for cyclists means it emits highly visible flash patterns in a smaller, more compact package. Its feather-like light weight makes it perfect as a wearable safety light, easily clipping onto straps, belt loops, and more. For added convenience, the Vmax+ 180 features mode memory, which will power on in the last mode used. The ALTO version of the Vmax+ 180 features Brake Sensing Technology, indicating to those following behind that you're slowing or coming to a stop. Features Brake Sensing Technology that indicates to those following behind that you're slowing or coming to a stop Built-in low battery indicator that glows blue when the battery is well charged and turns red when the charge drops to around 20%Highly visible COB LEDs provide superior brightness, energy efficiency, and durability Water-resistant USB-C that shields your light from water and dust Rear Flash Modes Mode Fast Flash Slow Flash Disco Flash Econ Flash Pulse Flash High Steady Low Steady Run Time (h:min)11:309:308:3020:005:454:3024:00Specifications Number of LEDs COB LEDs Battery Type Rechargeable, USB-CWeight59g RWater Resistant Yes Low Power Indicator Yes Mounting Type Seatpost Battery Mounting Internal | Niterider | Nirerider Vmax+ 180 Alto Tail Light 180 Lumens