Originally Posted by
luv2climb
I have a Dinotte 140R-AA and love it. It's is extremely visible during the daytime and I use it on ALL solo rides. It is too bright for group rides and can blind someone drafting behind me. A single 4AA battery back will last for at least four hours with rechargeables.
I use the 140L-AA (uses a 4xAA battery pack). Even on "low" steady it lasts over 13 hours on a fully charged set of NiMH batteries. I use it for century rides all of the time. Replacement batteries are easily found if your rechargeable batteries run down during a very long ride.