Clear turning signal. I wished the signals were larger as it might be difficult for a car to actually see the turning arrow and know that it is left or right. It comes with 3 mounting brackets and no instructions on how to use them. I had to go to YouTube to figure it out. The turning device goes on the handle bars while the signal can be installed on the back of the bike. Otherwise, I'm looking forward to using it on my ebike. It is better than using hand signals because most people don't know how to use hand signals or to interpret them.Worked as described. The mount is too wide to put on my flag pole but worked around the old light that I replaced.What you really want in a rear light on a bicycle is to *be seen*. In that category, I feel this light is tops. The reason is definitely the flashing red and blue lights. Blue is really the attention getter. We all know where you normally see a blue flashing light and it's not usually on a bike. It really stands out. (Very easy no-tool installation too.) I've had fellow riders ask me more than once for the name of this light and where I got it. Safety first! This light goes a long way to help with that!Very visible. Easy to mount. Battery charge lasts.The mounting strap could be longer. I had to use the ' ties' to make up for the shortcomings, otherwise its an awesome lightThis is a great product. Depending how far you ride and on what mode, the battery will last a good while. Beware of using the flashing red and blue because in the U.S. the police might stop you. Flashing red can be seen as far as 2 football field depending on what time of day or night. Make sure to remove the light from the bike every now and then because sometimes there’s a potential for the rubber to loose it’s elasticity and become brittle. The battery still had enough life after 40 miles plus. Great product for us and brightness when you are riding is well worth the money for our safety.Works well!I was looking for a reliable LED bright bicycle light and decided to try this one based on reviews. Glad I did, I love this bright light and the selectable modes. Forget the dim and cheap lights, this light rocks! I am now a Perigino fan. UPDATE-Used for two months now...still smiling.It is easily fitted and is really good light and was what we were looking for. We are leasure cyclists so it is only by day we cycle on quite roads mostly but rarely are we on very busy roads. On any given cycle we cover about 50 kilometres and this usually means about being out 4 hrs max with numerous stops looking about taking in the various views etc. So with lights on flashing mode we are lucky to get the 4 hrs and at that they are fadeing on our return.We returned to Amazon as it did not deliver what it said on the box.This light will ensure you are seen. It is very bright and has a rotation where you can face the light down or up.My slight worry is dazzling motorists if rotated so it faces up. It certainly lights the road behind and makes sure that you are visible to passing cars.There is a blue and red flashing option but I wouldn't recommend this as UK laws suggest only red.There is still and flashing red available.I haven't had it out in the rain yet so unsure how it will hold up. It does say rain proof but the jury is still out on this.Very slim, light and has a chrome surround which looks quite good.Managed to get it on prime day at £8.99 which is a bargain. Even at £14 it is still good value.Very impressed so far, just hope it doesn't dazzle drivers behind me!Much bringhter than any light I've previously bought for my bike. The attached photos show it in comparison to my existing CATEYE rear light, as you can just about make out from the photos its much brighter that the CATEYE. I've only just received this so cant comment on the battery life yet but the light looks good, fixings are simple and its brightBought to fit to my helmet, as I didn't want a rear light on the saddle stem. On arrival, it looks (and is) a great piece of kit. However, the rubber straps it comes with are very tough. On my initial trial of stretching the strap through the helmet to fit it, I thought, nah, no way this will stretch as far as I need it to. I nearly sent it back, but then I stretched out the band with my hands to 'warm it up a little', like pre-stretching a baloon before blowing it up. This worked a treat, and as such, I have since bought another for my pther helmet. Once fitted, it is very secure, no bouncing around and I think it is good value.