General description 5W Mountain Bike Headlight Kit is designed for cycling enthusiasts who require reliable and powerful lighting during their rides. This kit includes a headlight, taillight, and light bracket, making it suitable for mountain biking and night rides. The headlight features a CREE bulb with adjustable brightness levels and a long lamp life, while the taillight ensures visibility from behind. 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 for the headlight; High hardness VYI plastic for the taillight Compatibility and accessories Light bracket with 7 light change modes Quick release design Suitable for seat posts below 30mm Can be mounted on the rear fork tube of the bicycle