eScootNow stocks a range of entry-level and premium headlights for eScooters. Endurance is king when it comes to headlights, as is quality of optics. Our range expresses battery capacity in "Wh" (watt-hour) as a measure of battery size. Brightness is measured in lm (lumen) which is usually peak and headline as usually 2000lm is considered quite a generous amount of light for an eScooter if expecting any reasonable runtime. 2000lm of light draws ~9 watts on good quality, premium fixtures. The $60 Casual 42Wh would maintain this for around 4 hours (42Wh / 9h), the $125 Enduro 72Wh 8 hours and likewise on Bushmaster 76Wh, although the premium optics of the Bushmaster make much better use of the light (and energy). Allow for a further 20% reduction in runtime due to heat loss.