Halt R40 Smart USB Rear LED Light

40 Lumen
Functions: Steady - Breathe Flash - Slow Flash - Fast Flash - Rhythm Flash - Eco Flash
Battery: 350mAh Lithium Ion
Run Time: 10 - 35 hours
Material: PA66/PC AL Alloy
Weight: 27g
Auto Sleep
Brake Warning
Auto Awake
Auto Light Sensing
USB rechargeable
Saddle Rail Bracket