If you end up riding a lot, you will probably find that lights in this price range are not adequate. If you can find your way to increase your budget, you will be happier in the end. I have bought countless cheap lights, searching for the best value, and I got the worst values, since I spent so much on stuff that did not satisfy me. The worst light that I have that I consider acceptable is a Cygolite Streak, which seems to be about £36 on Amazon UK. I use it occasionally. It has a very good mount and a "steady flash" mode which keeps the light on medium intensity and gives bursts at high intensity.