Bests & Worsts Reviews from Amazon

I would like to give this light 3.5 stars, but since I can't, I will give it 4. It is not super bright, but bright enough that it will get drivers', cyclists', and other peoples' attention. I have attached a handful of images from behind the bicycle at 10', 25', and 75'. I also attached a video clip of the highest flash setting at 75'. I do the majority of my riding on a bicycle path, as well as on dimly lit suburb streets. Pros: Inexpensive. For the money, seemed hard to beat. Ease of mounting. Strapped right to the seat post tube. Could be mounted in 4 different orientations (2 horizontal and 2 vertical). Ease of use. Turns on in the solid mode, press and hold to enter flash/strobe mode. Not difficult to navigate. 6 total modes. Cons: Average brightness. I totally believe that it is 168 lumens. If you want something brighter than that, look elsewhere. This light is for being seen, and performs adequately. Feels a bit cheaply made. If I apply pressure to the USB port cover, I can feel it flex. But again, at the <$20 mark, it's a decent tail light. All in all, seems to be not bad. I will update with the run time once I run it down. I have been using it on the High flash when I ride, so that ought to give a good estimate for length of usage. **Update - Average runtime has been about 2 ish hours. It still emits light after 2 hours, but not to the point that I would consider it effective to use. I have been using it in flashing mode, either Medium or High, or strobe. I have no reservations about this light. Again, great as a safety light. You will be seen, and you won't run the risk of blinding people. The USB charging works excellently. Do not spend money on lights that require you to use replaceable batteries. It's not worth your money. Get one that you can recharge. No issues recharging. **