Headlights

Serfas' Thunderbolt Headlight delivers 90 lumens in an extremely versatile, USB-rechargeable package. Attach the water-resistant silicone body nearly anywhere on your bike, and use the high, low, or two flash modes to make sure cars, cyclists and pedestrians can see you at night. At just 50 grams, you won't even notice it's on your bike — but others will!

For the commuter who won't let a little darkness spoil the ride home, there's Serfas' TSL-100 Headlight. It lights your way with 100 lumens of brightness without an external cord or battery pack. Recharging is simple and convenient too: just plug it into your computer's USB port to recharge. This great light has steady and flash modes plus high, medium and low beams, and it includes a handlebar quick-release mount.

The All New 2021 Serfas® E-Lume Series Headlight New for 2021 our E-Lume Series Headlights feature a redesigned extruded aluminum housing, new optical lens with excellent side visibility, and improved battery capacity and LED performance. We made not only increased performance a priority but also improved rider visibility, so we designed an all new optical lens and housing with front corner cutouts to allow drastically more light be visible when viewed from either side – and this all without any reduction in quality of forward illumination or beam pattern. Constructed of aluminum the E-Lume housing is strong and lightweight as well as an efficient thermal conductor which effectively reduces heat buildup thus helping maintain temperatures for optimal battery performance and consistent light output. Light output of the E-Lume 600 is sent through a single optical lens creating a powerful beam with strong front illumination and excellent side visibility. Limited Lifetime Warranty Serfas® warrants to the original purchaser that the product is free of defects in material, construction, and/or workmanship for the lifetime of the product. Battery Warranty – One Year Coverage Serfas® batteries are covered by a 1 year warranty from the original date of purchase. Features: - All-In-One Design - Extruded Aluminum Body - Press and Hold Button Lock - Daytime Flash Mode - Up To 90 Hours Runtime - Integrated USB Rechargeable Li-Ion Battery - Backlit Button Indicates Charge Status and Low Battery - Handlebar Bracket - USB Charging Cable Specs: Solid Mode: - Overdrive – 600 Lumen / 2.5 hrs - High – 300 Lumen / 6 hrs - Medium – 150 Lumen / 12.5 hrs - Low – 75 Lumen / 22 hrs Flash Mode: - Daytime Flash – 600 Lumen / 75 hrs - Low Flash – 100 Lumen / 90 hrs Weight : 170g w/ Bracket Battery: 1-Cell Li-Ion 2600 mah Charge Time: 4 hrs To Full At 700mA Using USB Wall Charger Color: Black