General description The 5W Mountain Bike Headlight Kit is designed for cycling enthusiasts who require a reliable and powerful lighting solution. Featuring a CREE bulb, this headlight offers multiple brightness settings and a robust construction suitable for various riding conditions. Technical specifications Bulb: CREE bulb Brightness: Low light ≤ 120 lumens, Strong light ≥ 160 lumens High frequency flashing: 10HZ/S Lamp life: 100,000 hours (theoretical value) Voltage: 3.6-4.81V Battery: 3 x No. 7 or 18650 batteries (not included) Size: 104mm (113mm) × 34mm (Max) Protection class: IP6 Material: Hard anodized titanium black surface treatment, imported UCL lens Compatibility and accessories Power supply: 7 batteries x 2 (not included) Light bracket: 7 light change modes, quick release design Compatible with seat posts below 30mm and rear fork tubes for installation Adjustable torch buckle and handlebar buckle for diameters of 2.7-3.1cm and 2.3-3cm respectively Installation Easy