I. Basic Product Information Product Name: Gaciron V9D-1800 Gold Professional Bicycle Headlight & Power Bank (24K Gold Limited Edition, Off-Road Grade Bicycle Headlight) Model: V9D-1800 Gold SKU: V9D-1800 Gold Brand: Gaciron Positioning: Professional-grade bicycle headlight, suitable for off-road, mountain, road and other cycling scenarios, and also functions as a power bank Special Marking: Each unit is engraved with a unique serial number, featuring 24K real gold plating, and comes with a newly designed square gift box (classic black base + gold stamping process) II. Core Specifications Light Source: 2 LEDs (some information indicates 2 CREE XML2 LEDs) Maximum Brightness: 1800 lumens (testable, over 6 times brighter than ordinary bicycle lights on the market, comparable to car headlights) Floodlight Angle: 125° (no lighting blind spots, enhancing cycling safety) Irradiation Distance: ＞200 meters Battery Configuration: Built-in 6700mAh rechargeable battery (2 LG batteries, 35% higher capacity than the basic model) Charging Time: Approximately 3.5 hours Input & Output: Micro USB 5V/2.0A (input), USB 5V/2.0A (output, supporting power bank function) Waterproof Rating: IPX6 (usable in rainy and heavy rain weather, resistant to rainwater intrusion) Shell Material: Aluminum alloy (some information indicates 6063 aviation aluminum alloy) + engineering plastic Dimensions: 118mm × 53mm × 32.5mm Weight: Net weight 203g (some information shows 201g/206g), total weight 600g Certifications: CE, ROHS, FCC, ISO 9001, BSCI (some certifications may vary slightly by channel) III. Functional Features Multi-Mode Lighting: Supports 6 working modes to meet different scenario needs Ultra-Bright Mode (1800 lumens): Battery life approximately 1 hour and 55 minutes High-Bright Mode (900 lumens): Battery life approximately 2 hours and 45 minutes Medium-Bright Mode (500 lumens): Battery life approximately 4 hours and 30 minutes Low-Bright Mode (200 lumens): Battery life approximately 6 hours and 25 minutes Breathing Mode (100-50 lumens): Battery life approximately 12 hours and 30 minutes SOS Strobe Mode (1800 lumens): Battery life approximately 50 hours Safe and Convenient Control: Supports wired remote switch, which can be fixed on the handlebar, allowing mode switching without taking hands off the handlebar during cycling Dual Protection Design: Overheating Protection Circuit: Ensures stable operation of the device and extends service life Anti-Glare Acrylic Lens: Unique yellow front design, strong penetration of side warning lights, dual light spot effect, uniform lighting and eye protection Multi-Functional Reuse: 6700mAh battery capacity can be used as a power bank to charge mobile phones and other devices Installation Features: Equipped with a sturdy bracket, supporting the installation of large-diameter handlebars, enabling quick installation and disassembly Additional Details: Includes anti-slip stickers to improve usage stability; built-in overcharge, over-discharge and short-circuit protection functions IV. Package Contents Gaciron V9D-1800 Gold Bicycle Headlight Main Unit Mounting Bracket Micro USB Charging Cable Wired Remote Control Anti-Slip Stickers Product Manual (including English version)