The zenith has long been our brightest helmet bar light and the mk4 continues this legacy with significant improvements now delivering an impressive 2360 lumens. It retains the trusted 12deg spot beam tap technology allows you to quickly toggle between modes. The zenith 4 is a light you wont outride so youll always be ready for all out attacks on the most technical trails. Leds 3 x white xpl2w3 ip rating ip67 max lumens 2360 battery 6000 mah li ion runtime 1 36 hours dimensions length 120mmhead 41mm in the box zenith 4 helmet mount qr handlebar mount lanyard usb c charger 3 year warranty on all of our lights and the leds inside are covered by a lifetime guarantee! Ensuring peace of mind with every purchase. Our lights are designed to last a lifetime so we carry out servicing and repairs on lights well beyond the warranty period