I have this ... cyglolite. 16 watts - works nice - battery is good - could be better (when I say this - it's cause I use this set-up for off-roading for long periods of time - and I wear the battery out after a while - like couple of hours or less depending on if I have the high beam on) - had a better set up on the last bike that was stolen - forget what it was but the company went out of business anyway - I just make sure if I'm hitting late nite trails on my mtb that it's charged - as it wears fast.

Plus I rather miss the separate lights - nice to focus one on the wheel, another out in front.

And this set-up does not include a "blinker" - which is nothing so - I attach another one of the many to the front of the bike when I know it's going to be funky weather. There are times when that blinker versus a solid light seems to catch people's attention during rain, etc.