The Moon Nova 80 and Pulsar light set is compact, lightweight and powerful. Upfront the Nova 80 delivers 80 lumen which designed to be seen with. It makes a great secondary unit to your main headlight. The Pulsar rear bike light delivers 25 lumen with excellent side visibility. This makes you more visible at corners, crossings and junctions. Both bike lights utilise quick release brackets for easy mounting and dismounting - ideal for commuters and those that rider regularly. 5 brightness modes on each light allows you to optimise for visibility or battery economy based on the conditions and time of day youre riding. Front Light Details:1 x Cree XH-G LED1 x AA batteryIPX45 modesQuick release handlebar bracketHigh precision optical lensSide visibility80 lumens output44 degrees total light angle11 degrees spot angleSize: 26 x 26 x 88 mmWeight: 54.8gFront Light Runtimes:Overdrive 80 lumens - 1 hour 50 minsHigh 40 lumens - 3 hours 10 minsStandard 20 lumens - 7 hours 25 minsFlashing 40 lume