Simpler and improved connectivity for 2021 means you can make the most of the Six Pack’s deep reaching and wide beam; personalise the output from a potential ultra powerful 4750 lumens for the gnarliest of downhill sections to 36 hours and longer with ample light to complete as many laps as your body can muster during long endurance events.Sync - SYNC allows you to control the light with a remote switch and to make custom programs in the Exposure SYNC App, additionally both helmet and handlebar lights can be simultaneously controlled with a single remote via Bluetooth connectivity. App is available in both iOS and Android platforms.Key Features: Weight: 386g, Lumens: 4750 lumens Reflex Boost, 3600 constant, Runtime: Min 2 hrs Max 36 hrs, LED Configuration: 6 x White XPL2, Battery Capacity15,500 mAh Li ion, Dimensions (mm)Length - 118, Head - 61, Back – 54,LED’s6 XPL2.In The Box: Six Pack SYNC MK3, SYNC Remote, QR Handlebar Bracket (31.8mm - 35.0mm), Fast Charger, QS Guide..