USB Rechargeable Bike Light Set, Super Bright Front Headlight and Free Rear LED Bicycle Light, 4400mAh Lithium Battery, 3 Light Mode Options, Water Resistant IP-65(2 USB Cables and Brackets Included)

I bought this light to stick on my Giant, so that I could ride after dark. I'll admit that I didn't really expect a lot, but I bought it in the thinking that it'd do until I could do proper research and get something long-term. Boy, was I surprised! This thing works GREAT! VERY bright, and I had no problem getting it installed. The tail light was a little cryptic, at first, since it came, "On," and as soon as I plugged it in to charge, it started blinking. It took a minute of trying to get it to settle down, but hey, at least I knew it worked. I've used the light now for months, and it holds a charge for what seems like FOREVER. To my shame, I don't ride as much as I want to, so it sometimes sits for weeks, neglected. It sat for four months, at one point, and still had enough charge to power up for a few minutes. Not bad, if you're using it as a flashlight for around the house! I really like the light, and I think for the price, you could make a much worse choice.