Topeak Headlux 250+ Front Light KWT the DUB BSA bearings are

the DUB BSA bearings are significantly lighter than the previous version for GXP cranks

and a warning beep will alert you

Material: silicone

Diameter: 25

Peak Beam Intensity: 35000cd

Topeak Headlux 250+ Front Light KWT the DUB BSA bearings areUSB C rechargeable, high performance optical lens front light provides 250 lumens brightness at good value. A rubber strap provides bi directional tool free mounting and easy removal on aero round handlebars or helmets. Specifications Mode Run Time High: 250 lm (2. 5 hr)Mode Run Time Middle: 120 lm (4. 7 hr)Mode Run Time Low: 60 lm (9. 5 hr)Mode Run Time Blinking: 120 lm (10 hr)Lamp: 2 white high power LEDsLamp Housing: Strap Mount, GoPro Mount