Bike wrote a review of NiteRider CherryBomb 1 Watt Tail Light on June 5, 2012
I had a planet bike super flasher before these, that did well, but I decided to get a couple of these when I got my headlamp. They are super bright, and are visible even during the day. I use them on a daily basis, and have only had to replace the batteries once in one of them, so I think the actual battery life is longer than the claimed life. I use two of them and never feel like cars are getting too close on my commutes or in the canyons.