Ive looked at the cateye 530 light but it gets bad reviews
kfinlay said:£14 will get you two of these one flashing and one constant will do you good for being seen. Maybe not the best for unlit roads. Rebadged version have been reviewed in this months C+ and got 9/10 at £19 each!
http://cgi.ebay.co.uk/ws/eBayISAPI.d...STRK:MEWAX:VRI