Features: 30 Lumen Max Output 4 LED Chip Finned Lens Design Provides 270 Degree Visibility Blue LED Charge Indicator Daytime Flash Mode Up To 34 Hours Runtime Micro USB Rechargeable Specs: Solid Modes: High - 15 Lumens / 2 hrs Low - 6 Lumens / 6 hrs Flash Modes: Daytime Flash - 30 Lumens / 34 hrs High Flash - 15 Lumens / 19 hrs Low Flash - 6 Lumens / 34 hrs Weight: 26 Grams w/ Bracket Size:Overall Height - 56.3mm (2.22")Main Cylindrical Body Width - 21.7mm (0.86")Widest Fin Width - 32.3mm (1.27") Charge Time: 2 hrs Using 500mA USB Wall Charger Product Package Contents: (1) UTM-30 Cosmo 30 Lumen Tail Light (1) Micro USB Charging Cable (3 Sizes) Rubber Mounting Inserts (3 Sizes) Rubber O-Ring Mounting Straps