I love my cygolite. usb rechargeble too and the charge actually lasts for multiple night commutes back home on high power before needing to be plugged back in!
I personally use a expilion 800

The sizes of their lights are quite deceiving.
I used a blaze 2 watt before and this outright blew it sky high out of the water and into oblivion. Definitely take care when adjusting the angle of it as it will blind if pointed directly toward oncoming.