The Cateye ViZ 150 rear light stands out with high visibility from OptiCube™ lens technology and Daytime Hyperflash™ mode in an economical package. This is a compact, bright, and versatile light for low light situations. 
 
Key Features:
3 LEDs (150 lm)
Highly visible during daytime
300 degree visibility
Long rear beam projection
OptiCube™ lens technology
Lithium-ion rechargeable battery
USB rechargeable (Micro-USB cable included)
Low battery indicator
4 modes *Charging time: 3h
Mode memory function
Battery Auto Save (The mode automatically changes to flashing when the battery power gets low.)
New seat post bracket SP-15 which fits comtemporary (kammtail) aero seatpost
Snap System™
 
Runtime:
Constant (20 lumens)：5 hrs
Flashing (15 lumens)：70 hrs
Group Ride (50 lumens)：11 hrs
Daytime Hyperflash (150 lumens)：15 hrs
Charging time (From empty) : 3 hrs
Technologies:
Opticube™ is Cateye's proprietary lens technology which maximizes brightness for greater visibility
Snap System™ allows riders to place rear lights on various locations in both horizontal and vertical orientation
Side Visibility enures 300° visibility from the side to increase safety
Low Battery Indicator offes alerts when remaining battery gets low
USB rechargeable batteries from a built in USB port
This light can also be sed in the daytime
All Weather IPX4 allows use in rainy weather