I-462R TURBO (USB) - Size: 40 x 40 x 23.5 mm - Led: 30 Chips Round COB LED - Brightness: 10 Lumens High Beam - Rechargeable: Lithium-ion Polymer Battery (USB) - Run time: 3 hrs (High Beam) /4.5 hrs (Low Beam) /27 hrs (Flashing1) /27 hrs (Flashing2)/ 5 hrs (Pulsating) - Charge: 2 hrs - Bracket: RB05′, Round Type, fit Ø19-Ø48 mm, RB08, Aero Type, fit perimeter 69-150 mm - Attached Seat post bracket for round and aero type, saddle rail and works great as a helmet light with an adjustable velcro strap - Water resistant. - Weight: 22g