【Title】 Cetus-1700 Bike Headlight, 1700 Lumens with Over 200m Beam Distance, IPX6 Waterproof, Type-C Fast Charging, Wireless Remote Control, Compatible with Shimano Di2 【Core Selling Points】 1700 Lumens High-Brightness Illumination: Beam range exceeds 200 meters, with a super wide 30-meter lighting coverage. Features high-low beam and anti-glare design, ensuring no blind spots for night urban commuting and off-road riding. Wireless Remote Control + Intelligent On/Off: Switch between 6 brightness modes without taking hands off the handlebars; automatically enters sleep mode 2 minutes after parking, instantly turns on with bike vibration, and locks with a 5-second long press to prevent accidental touch. IPX6 Waterproof + Long Battery Life: Stable performance in heavy rain and strong water spray; 4200mAh large-capacity battery provides up to 24 hours of runtime, with three-color indicator lights showing real-time battery level. 2-Hour Fast Charging + Easy Installation: Type-C interface improves charging efficiency by 75%; bottom quick-release design enables 1-second installation/removal. Comes with a GoPro adapter, compatible with Shimano Di2 system. 【Detailed Specifications】 Model: CETUS-1700 Max Brightness: 1700 Lumens Beam Distance: ＞200 Meters Battery Capacity: 4200mAh (3×1400mAh) Charging Port: Type-C (Input: 5V/2.0A) Charging Time: ≈2 Hours Max Runtime: ≈24 Hours Waterproof Rating: IPX6 Material: Aluminum Alloy + Nylon Size: 47.6×52.5×71mm Net Weight: ≈181g 【Product Advantages】 Multi-Scenario Adaptation: Meets anti-glare needs for urban night roads and long-range requirements for off-road riding, allowing clear visibility of road conditions on both sides even during high-speed cornering. Worry-Free Riding: Wireless remote control is fixed on the handlebar, enabling brightness adjustment without taking hands off; IPX6 waterproof rating handles rainy rides, and 2-hour fast charging reduces waiting time. Thoughtful Details: Whale-inspired black-and-white color scheme + aerodynamic design, with a drag coefficient of only 0.35CD (over 50% lower than traditional headlamps), equivalent to a 500g weight reduction during riding; 3 color options available to match your bike. 【Package Included】 1×CETUS-1700 Bike Headlight 2×Wireless Remote Controls 1×H17 Bracket + 1×Medium Screw Rod + 1×Screw + 1×Nut 2×Washers + 1×Wrench + 1×GoPro Adapter 【After-Sales Tips】 For first use after receiving the product, unlock it by clicking 5 times within 3 seconds; for installation and adaptation issues, contact customer service to obtain an installation guide video.