My local Aldi still have lots of bike stuff on the shelves from a recent promotion, so I picked up a front/rear light set for £13, and an additional rear light which is brighter for the same price. They are USB chargeable and seem quite good for the money..
I do that with everything I do. I spend ages researching before purchasing anything expensive, to the point where I might even go off the idea completely. Nothing worse than buyers remorse
I have just bought the same style front light as your back one Bear and I am pleased with it ,really bright flashing ,strobe or steady £12.99 with usb charging