Best rear light I've had is Smart Lunar 2. It can be obtained from On-One for silly money sometimes and is not too expensive at RRP. Obviously its not as bright as the £100+ lights but it beats most cheaper ones in my opinion and has survived cycling in all weather and 2 winters.
I've had a few cheap rears from Smart and found that the plastic clip always breaks at some point and I have to tape it up very messily. Have they improved the design at all?
Best rear light I've had is Smart Lunar 2. It can be obtained from On-One for silly money sometimes and is not too expensive at RRP. Obviously its not as bright as the £100+ lights but it beats most cheaper ones in my opinion and has survived cycling in all weather and 2 winters.