High-strength 400 lumen light with Blitz mode for pitch darkness. Silicone around edges of light source dims brightness to a soft ambient glow. Clips to bags and bike handlebars or mounts on head with a retractable retention cord for hands-free lighting. Extremely light 72g weight for less imbalance. Waterproof design survives submersion in water for rain drenching safety. Dustproof and grit-proof for durability. Micro-USB recharging ANSI FL-1.