BUILT-IN PANASONIC BATTERY PACK: With battery pack of 2 x 3400mAh Panasonic 18650 Batteries (the Most Efficient and Highest-Capacity Lithium 18650 battery commercially available), the USB rechargeable bike light provides you at least 4 hours and 15 minutes run-time (TRUE RATED) on the highest 1800 lumen setting, 6 hours and 20 minutes on Mid (850 lumen), 16 hours and 50 minutes on low brightness (180 Lumen) and 76 hours 20 minutes on the lowest ECO setting (15 Lumen).
HIGH PERFORMANCE 1800LM: With two Cree XLamp XM-L2 LEDs, the USB rechargeable bike light delivers breakthrough 1800 lumen output (Maximum Beam Distance: 148 meters) and efficacy on the highest setting. Built on the SC³ Technology Platform, the XLamp XM-L2 LED delivers up to 20% more lumens and lumens-per-watt and double the lumens-per-dollar of the original XM-L.
SMART DIGITAL SYSTEM: With smart indicator, red LED lights while charging and turns green when the charging is completed. Red light flashes up to warn you that the battery power is below 30% and remind you of charging. Smart energy management circuit will auto-regulate the brightness when battery power is below 30% to prolong runtime to maximum extent. The USB rechargeable bike light is also able to remember the flash mode operated last.
USB CHARGING PORT: the bike light can be recharged directly with any USB charging port with 4.8V-5.2V Output: mobile phone USB charger, power bank USB port, and laptop USB port (USB Charging Cable Included).
3 YEAR WARRANTY: Solid mount with adjustable belt fits bicycle handlebars of different sizes. Bike light body made of military grade anodized aluminum with excellent heat dissipation. IPX-68 waterproof standard. Evolva Future Technology provides 3 year warranty . The USB rechargeable bike lights are warranted to be free of defects from materials and workmanship for a period of 3 years from original purchase.