Brightz LED Bike Wheel Lights – Pack of 1 Tire Light for Front & Rear Wheels – Battery Powered Bicycle Spoke Lights for Night Riding Safety & Decoration – Perfect for Cycling, Commuting, and Evening Rides

I love this product ! My sister discovered them 8 years ago for her shore bikes ! And they are cool and serve a significant safety purpose for night riding ! We get so many compliments on them when we ride!I would recommend rechargeable batteries. Easy to open the compartment to remove and place batteries when needed. Battery pack holds very nicely. I have an E-bike and go up to 20mph and has not moved out of place.An exact replacement for the one I had on my bike tire before it got ruined.I saw people with these lights in Santa Monica and knew I had to get some. I ride at night a lot and wanted something more bright and fun instead of using just a headlight and taillight. My first night out, people were saying how nice they looked. People can definitely see you coming.I got these for my boyfriend. So I originally ordered these from Amazon marketplace and by comparing the box I got to the genuine box photos, it was pretty obvious that I received knockoffs. Amazon was really good about refunding my purchase after I complained. Unfortunately, it looks like these keep getting sold by a series of slightly sketchy importers, using shifting names, and I don't fully trust that anyone selling Wheel Brightz under this listing is selling the genuine article. So I bought a new set of Wheel Brightz from the manufacturer's website.I am super bad at mechanical stuff, but installation was OK. Maybe 15-20 minutes per wheel.I got the pink one, my boyfriend got the multi-color. They both look great. The multi-color version looks kind of ugly when you're stationary compared to the other, more uniform colors, but it's totally sick when you're actually on the bike in motion -- it's like having a little rainbow whipping around your rim. For thirty bucks you bring a lot of joy to the world -- we probably average one direct compliment for every 1-2 miles or so of biking, depending on pedestrian density (and I overhear a lot of people talking about the lights but not directly to us). Typical encounters: A little kid in Bernal Heights shouted "you have a cool bike!" from his front porch. A (probably slightly intoxicated) pedestrian in the Mission told my boyfriend he had the coolest bike in San Francisco and gave him a fist-bump. Another stranger shouted, "I like your Playa bike!" (this is not my Playa bike, although these lights would be perfect for Burning Man.) The lights are very bright and visible, although you still need to have standard front and rear lights, as the Wheel Brightz can't be seen from directly behind or in front of the bike.Update: A year later, I still haven't had to change the batteries! I have had to order one replacement power supply for my boyfriend's bike, though -- we hang our bikes vertically by the front wheel on wall-mounted hanging racks and over time, the power cord got caught between the wheel and the rack enough times that it frayed and wore through. (You can avoid this if you are reasonably careful when you hang up your bike and avoid crushing the power connector cable -- it just hadn't occurred to us that this would be a problem until the cable broke, so we didn't bother trying to avoid it.) More recently, a segment (about a quarter) of the lights on one of his wheels went out, although you can't tell when the bike is in motion. Again, this is probably caused by hanging the bike by the front wheel.Update II: I've gotten several more sets of these, and they're still great, but I notice that in some of the sets I've bought more recently, in the initial packaging, the battery pack is screwed on so tightly I've had to use an electric screwdriver to open it -- it would be nice if they could fix that and not over-tighten the screws!Update III: I recently brought a pair of these to Burning Man. I noticed on the Playa that of all the different lighting schemes people used for their bikes, Wheel Brightz were the brightest and most visible -- far better than EL wire or front and rear lights. If you are planning to go to Burning Man, I would recommend Wheel Brightz as an absolute must-have for your bike.If you don't have a bike with spokes it's a little difficult. As you see, my son has mag wheels. Definitely not enough zip ties provided. Thankfully I have a lot of zip ties laying around. The tubes are a lot longer than the wheel is round, so I had to loop it around into the center. Tube is very flexible and easy to wrap. Be prepared to have extra zip ties for when you have to change the batteries. You have to zip tie over the battery pack to keep it on the wheel. Also, when cutting the ties, make sure to cuz the one on the battery flush or it will hit the front brake cable. I personally had to zip ties my sons brake cable closer to his frame so this didn't happen. Lastly, if riding on bumpy surface, lights will go out. Just push the button and it works. All in all, I'm pleased with this product. I bought an extra one to wrap around his center frame too. Added bonus, not just for wheels. Every year my son is ghost rider and he is super excited to have his bike light up like fireEasy to install and they work well when they work, but sadly they don't last longer than three or four monthsEasy to install (watch youtube), but be careful when biking fast on a bumpy curb, or steep sidewalk. When I was biking i heard a loud noise coming from my bike when I was biking over a steep curb while crossing the road and didn't realize that the battery completely snapped off until later that day.Everything works great, except for the fact that I have a relatively large steel mount for my rear wheel brake. So the battery pack mount slightly - very, very slightly - grazes the steel mount for the brake. The friction is fractions of a millimeter, and has only caused a very slight abrasion on the battery pack mount surface. This has turned out to not be a problem at all, even at speeds above 45 km/h which I occassionally bike at.Just remember to check and tighten all the battery pack screws after every trip - they do become a bit unwound with distance, on both wheels. Other than that, the product works amazingly well and is extremely cool. :DWe actually ended up sticking these in my son’s small bedroom - which he loves. I didn’t think they would last on his bike which he regularly rides through mud.Please note this is only one set for one wheel which i didsnt realise .they are lovely though and hopefully last.i bought them for my wheelchair as im only young and waned to Jazz if up a bit :) xkids love itAs described. Thank you