Planet X have their bonfire flash sale on at the moment and this is a very good price for a bog standard front and rear light set. RRP is £20 which is obviously rubbish, but a quick web search shows Evans previously having sold for £10 so £3 is still a good deal!
Rear light has constant, rotary and flashing modes, runs on 2 AAA batteries and clips onto belt clip, seat post or seat stay.
I had been looking for a decent back up set of lights and these should do nicely! This is my first deal and it is way overdue so don't be too nice. Cheers!