The Serfas E-Lume Series light line was developed to be the best on the market at the very best value. These headlights will meet and exceed their expected lumen output while offering you all the features you've come to enjoy from Serfas lighting. - Compact Lightweight Aluminum Design - Super Bright (250 Lumens) Output - Water Resistant Rating: IPX4 - 3 Level Battery Life Indicator - Last Mode Memory - Max Charges Rate of 500mA - Charges from Dead to Fully Charge in 2.5 hours (Using 500mA Rated Charger) - Solid Modes: High (250 Lumens): 2.5 hrs, Medium (100 Lumens): 4.25 hrs, Low (50 Lumens): 7 hrs - Flash Modes: Daytime Flash (250 Lumens): 50 hrs, Low Flash (50 Lumens): 18 hrs - Weight: 142 Grams with Bracket - Battery: 1-Cell Li-Ion, 1400mAh Includes: - Micro USB Cord - Handlebar Mount

Features: - Up to 20 lumens ANSI standard approved - Runtime: Day mode 4 hrs., High 8 hrs., Middle 15 hrs., Flash 30 hrs. - Li-Po rechargeable battery - Low power indicator - Motion sensor include - IPX4 waterproof rating - Charge via Micro USB cable

Features: - 20 super bright red COB LEDs - 4 Modes: High (1.5hrs), Mid (4.5hrs), Flash (5hrs), Patrol (5hrs) - Li-ion rechargeable battery with Easy Magnetic USB charger (1.5 hrs charge time) - 20 lumens - Waterproof - Includes magnetic jersey clip - Optional integrated mount designs - 57093- D-Fuse seatpost mount - Integrates with the following Giant and Liv helmet models: -- Roost/Coveta -- Strive/Lanza -- Prompt/Unica -- Compel/Luta

Features: - 70 lumens (Numen+ Tag HL) ANSI standard approved - Runtime: Steady (3hrs), Low Steady (6hrs), Pulse (15hrs), Flash (20hrs), Random (30 hours) - Li-Po rechargeable battery - Power indicator - Auto start sensor - IPX4 Waterproof rating - Integrated USB plug - Flexible mounting system works with different shape handlebars and seatposts

Features: - 30 lumens (Numen+ Tag TL) ANSI standard approved - Runtime: Steady (5hrs), Low Steady (10hrs), Pulse (15hrs), Flash (30hrs), Random (50hrs) - Li-Po rechargeable battery - Power indicator - Auto start sensor - IPX4 Waterproof rating - Integrated USB plug - Flexible mounting system works with different shape handlebars and seatposts

Features - High power Cree XP-E2 LED headlight - 195 lumens in High mode - Modes: High: 195 lumens (1.5 hrs), Medium: 98 lumens (2.5 hrs), Low: 49 lumens (5.0 hrs), Flashing: (20 hrs) - Li-ion rechargeable battery via Micro USB - Aluminum case - User-friendly mounting system

The Serfas E-Lume Series light line was developed to be the best on the market at the very best value. These headlights will meet and exceed their expected lumen output while offering you all the features you've come to enjoy from Serfas lighting. - Compact Lightweight Aluminum Design - Super Bright (500 Lumens) Output - Water Resistant Rating: IPX4 - 3 Level Battery Life Indicator - Last Mode Memory - Max Charges Rate of 700mA - Charges from Dead to Fully Charge in 3.25 hours (Using 700mA Rated Charger) - Solid Modes: Overdrive: (500 Lumens): 2.5 hrs, High (200 Lumens): 3.5 hrs, Medium (100 Lumens): 7 hrs, Low (50 Lumens): 14.5 hrs - Flash Modes: Daytime Flash (500 Lumens): 25 hrs, Low Flash (100 Lumens): 20 hrs - Weight: 162 Grams with Bracket - Battery: LG 1-Cell Li-Ion, 2200mAh Includes: - Micro USB Cord - Handlebar Mount

Moonlit trails and nighttime club runs - Numen + HL0 headlight outputs a vast 700 lumens from its Cree 10W LED. With 4 modes HL0 has a run time of up to 25 hours and is easily recharged via USB. A solid feeling aluminum case ensures durability, a rotational 3 position mount allows adjustment on the fly and a low power 2-hour flash run ensures you have a window to get home if you run flat. Features - High power Cree XM-L2 LED headlight - 700 lumens in Turbo mode - Modes: Turbo: 700 lumens (2.8 hrs), High: 350 lumens (4.1 hrs), Low: 175 lumens (7.7 hrs), Flashing: 85 lumens (25 hrs) - Rechargeable battery via Micro USB - Aluminum case - User-friendly mounting system