My 2 cents on this topic is that lighting is relevant. If you're sporting 400 lumens on the bars and the helmet, you're set ... until someone with a 600 lumens rides up behind you. Then you end up riding in your own shadow. When riding behind someone at night ... keep your distance. Either that or dim your light.

Dinotte taillights are TOO BRIGHT FOR NIGHT-TIME USE WITH OTHER CYCLISTS!!!!! DINOTTE TAILLIGHTS ARE WAY TOO BRIGHT FOR TRAIL USE WHERE YOU'LL ONLY ENCOUNTER OTHER CYCLISTS.