The Moon Canopus front light is ideal for all types of riding, including off-road. The Canopus has a massive lumen output for extended periods perfect for off-road riding. Eight modes, including a Boost Mode & Daytime riding, quick release bar & helmet mounts, makes the Canopus versatile. CNC Aluminum heat sink casing, overheat protection, Water resistant (IPX 7) & Water-resistant USB (Universal Serial Bus) port keep your light safe no matter what. Convenience comes in the form of a USB (Universal Serial Bus) remote control system, external battery pack, low battery, charging & fully charged indicator plus an Automatic fully charged cut-off system. Features Boost mode Dual-beam colour Day flash mode Light mode memory CNC Aluminum heat sink casing USB remote control system External battery pack Overheat protection system Quick-release handlebar mount Quick-release helmet mount Low battery, charging & fully charged indicator Automatic fully charged cut-off system Water-resistant (IPX 7) Water-resistant USB (Universal Serial Bus) port Lock Mode Variable lumen system FL-1 tested lumen FL-1 tested runtime FL-1 tested beam distance Mode: Output, Runtime BOOST: 3600lm, 1.50hr MODE 1:2500lm, 3hr MODE 2:1600lm, 4hr MODE 3: 100lm, 90hr FLASH 1: 200lm, 160hr FLASH 2: 400lm, 80hr DAY FL: 800lm, 200hr SOS: 40lm, 230hr This light is great for everything from commuting to off-road/ mountain biking. Buy this for your mountain biking but use it on every bike for any occasion.