A powerful headlamp is great, but a powerful AND long-lasting headlamp is even better. We now have available the Bright As Day 800 + extra Battery Pack bundle to improve the running time up to 4h at full power, delivering 800 true lumens or 8h at 400lm to brighten your night adventure from sunset to sunrise. > Visit our website, select Bright As Day 800 and “Headlamp + Extra battery” on the drop down menu. #ultrarunning #headlamp #running #mountains #lights #lampefrontale #hodelykt #utmb #brightentheuncharted