Bryan C.wrote a review of NiteRider Sentinel 150 Tail Light on May 14, 2018
Familiarity: I've used it several times
As many have said the mounting mechanism is weak. The light itself is nice and bright but it is much too big. The laser lines sounded great but as many reviews have said they simply are not bright enough to be effective. The battery life in the highest 2 settings is 4.5 hours or less which for some riders is just not enough. Battery life is even worse with the lasers on. Returned for refund.