The Six Pack's deep reaching beam is Exposure's brightest yet for intense shreds and the high capacity battery stores enough power to last the duration of the longest endurance events, just use the OMS (Optimised Mode Selector) to choose the runtime for your needs from 2 to 36 hours. Together with Reflex++ the Six Pack will automatically give you the perfect lumen level no matter the ride . The Smart Port utilises the large battery as a power bank for your other devices for an overnight bike packing adventure5000 lumens Reflex Boost, 3600 constantReflex automatically adjusts the light to increase output when riding fast then dimming for the slower sections, saving battery life.OLED display panel gives clear information light status including battery lifeOptimised Mode Selector allows rider to fine tune power and run times for the rideIntelligent Thermal Management preventsg overheating and maximizing battery lifeEasy to read Fuel Gauge for monitoring run time