I just purchased the Dinotte Pro series about 2 weeks ago. It does put out a tremendous amount of light but I am not happy with the run time. Mine has yet to live up to specs ( I run on high 95% of the time). It is my suggestion that you carry backup charged batteries if you are out long at night and have these lights. Yesterday I approached a cyclist that had the Dinotte red tail light and I was not impressed with it at all (It was mid afternoon). I mention this because I am hearing a lot of people suggesting to run lights in the daytime. I am not wanting to start a discussion about daylight lights I am just saying that I was not impressed with the one this gent had on. good luck on your purchase whatever it is.

Bike flyers comment...
What constitutes "enough" light is a matter of debate and is a personal preference. No two people seem to ever agree.


Bike flyer makes a good point about how much light is enough.

Jim