Be seen! The Serfas® Apollo series is a super bright waterproof LED light that is also compact and simple to mount. 

Specifications: 

• Includes 15 lumen front and rear LED lights
• USB Rechargeable
• Aluminum case waterproof Construction
• Strap Fits Bars 20 – 40mm
• 240° Illumination Visibility
• Runtime:
• Solid Modes: High: 3 hrs, Medium: 6 hrs
• Flash Modes: Slow Flash: 50 hrs & Quick Flash: 40 hrs
• Weight: 29 Grams each, With Bracket
• Battery: 220 mAh Lithium Polymer
• Micro USB Cable Included