Serfas Cosmo 30 Lumen Tail Light

30 lumens to keep you safe! The UTL-30 utilizes an aluminum constructed body to house an IPX6 waterproof light. With its 5 modes, the UTL-30 is ready for action.Features: Large, Highly Visible Lens for Maximum Visibility IPX6 Waterproof Max Charge Rate 500mA Charges from Dead to Fully Charge in 2 hours Last Mode Memory Specs: Solid Modes: High (30 Lumens): 2 hrs, Low (15 Lumens): 4 hrs Flash Modes: Daytime Flash (30 Lumens): 5.25 hrs, High Flash (30 Lumens): 8 hrs, Medium Flash (15 Lumens): 10 hrs, Low Flash (7 Lumens): 13 hrs Weight: 60 Grams with Bracket Battery: Lithium Polymer