The Swift™ 500 gives you all the power you need for night time riding at our lightest weight for headlights (82 grams). NiteRider® makes this headlight USB rechargeable for convenient on-the-go charging. The Swift™ 500 features a highly durable light housing with Dupont® Fiberglass reinforced nylon meeting all required FL1 Standards for impact testing and dust/water resistance.FEATURES: Lumen Output: 500 5 Modes with Run Times: 1:40-32:00h Charge Time: 2:00/3:15h Low Battery Level Indicator Weight: 82g Water / Dust Resistant IP64 Rated Micro USB Rechargeable RUN TIMES: Low - 10:00h at 150 Lumens Med - 3:40h at 250 Lumens High - 1:40h at 500 Lumens Flash - 12:30h at 500 Lumens Walk - 32:00h at 30 Lumens *Run times are approximations and may vary Note: The NiteRider® Swift™ 500 is shipped from the factory in Travel Lock Out Mode. This mode feature is designed to save battery power by preventing the head light from accidentally turning on while in storage. Simply press and hold power button 8-10 seconds to lock / unlock.