It really depends on what you define as bright enough. I used the light bar to wakeboard at night last year and it really only lights up directly behind the boat. You cant see at all outside of the wake. When we did it, we used a bunch of glow sticks so you could see where the rider was when they fell. This worked well but I wouldnt reccommend riding at night unless you really want to do it.
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Honda VF750C