The Meteor X Auto front light combines a compact chassis with superior light output making it ideal for every day commuting whatever route you take. The Meteor X Autofront generates up to 450 lumens of light, enough to light up dark stretches of road & cycle path as well as making you visible to other road users. The Meteor X Autocomes with a light sensor that will automatically switch it on & off when it is needed. This makes it a great option when the seasons are changing or when you are out on longer rides in the winter. The Meteor X Autois USB (Universal Serial Bus) rechargeable & comes with a quick release bracket so its easy to take off the bike when you need to. 1 pc CREE XP-G2 (S3)high brightness LED CNC Aluminium heat sink light cap Light sensitive auto ON/OFF Mode memory function Day flash mode Quick release rechargeable lithium ion battery (3.7V 1400 m Ah) 3 steady modes, 3 flashing modes, SOS modes. Quick release universal bracket fits all round bars & AERO style bars) Low battery, charging & fully charged indicator Automatic fully charged cut-off system High precision optical lens Side visibility Recharge time 2.5 hrs Water resistant (IPX 4) Size (W x D x H): 88 x 30 x 34mm Weight: 0.085 Kg; Packing & Package: 0.1kg Max. Auto Mode Standby Time: 500 hrs Mode Lumen Runtime MODE 1 320 2:00 MODE 2 180 4:00 MODE 3 100 7:00 FL 1 60 20:00 FL 2 200 18:00 DAY FL 450 57:00 SOS 60 24:00