Ravemen PR1200 USB Rechargeable Bicycle Light with High-Low Beam System (1200 Lumens, in-built battery)

Features:   
- DuaLens optical low beam,providing broad flood light with cut-off line for commuting, no dazzle and glare for oncoming riders and pedestrians
- Dual LEDs for HiLo beam system, providing illuminating light similar to automotive headlight with far reaching high beam and low beam
- LED real-time display to show remaining runtime in each brightness level
- Wireless remote switch with instant max output and brightness adjustment buttons to control the light easily
- Extending battery runtime with external power source
- USB output to change portable digital devices
- Intelligent memory circuit remembers the last used brightness level and mode when turned on again
- Quick release design for easily slide in and out
- Compatible with handlebar of 31.8mm and 35mm diameter 
- Made with Aluminium + Military Type III Hard Coat Anodizing 

Specifications:  
- LED: 2 x CREE XM-L2 LEDs with a lifespan of 50000 hours
- Power Source: 5200 mAh/3.7v rechargeable Li-ion battery 
- Peak Beam Distance: 142 meters
- Brightness Outputs: 
        Road Biking:  
High 600 Lumens - 3.5 Hours  
Medium 400 Lumens - 5 Hours  
Low 200 Lumens - 9.5 Hours 
Eco 100 Lumens - 21 Hours  
Rapid Flashing 100 Lumens - 13 Hours 
        Mountain Biking: 
High 1200 Lumens - 2 Hours  
Mid 600 Lumens - 3.5 Hours  
Low 300 Lumens - 8.5 Hours 
        Emergency:  
Turbo 1200 Lumens - 
- IPX Rating: IPX8 (Waterproof) 
- Impact Resistance: 1 meters

Dimensions:  100mm (Length) x 48mm (Width) x 27mm (Height) 
Weight:  213 grams (including battery)