(from a review on the rear LD110 light only) As far as rear lights go, this is the daddy of all the self-contained units. With 10 bright LED's powered from just two AA batteries, the run time in excess of 100 hours (we actutally got 102 hours) in legal flashing mode is simply amazing. The modes are flashing, constant, sequential and fast sequential (in that order), making 16 ways to have your light turned on. The single best thing about this light is that it is btight, and bright at almost all viwieng angles. Add to the fact that it's well sealed, very well made, runs for ages and has a good mounting system, and this is a clear winner.
Quite possibly the best self contained rear light available