All sorted guys ... so no more arguing
I've ordered the Chinese light that works with a powerbank, so thanks for the link, thats exactly what I was looking for
As mentioned, I cycle on very dark crappy roads /cyclepaths daily ... Many hazards, including potholes and pedestrians or cyclists that have no lights and who travel with you on very narrow cyclelanes (I travel daily between Shelford and Cambridge on the cyclepath)
I start a new job on friday and I have to leave home at 04h50 so as to get to work on time, so I will be cycling in cold bad dark weather for the next several months
These Chinese Cree lights are best that I have used so far .... fitted to a headband, I angle the unit down when I'm cycling in fairly lit areas .... In the very dark, I adjust the headband so that the light shines more forward, and I can see more of the road ... approching cyclist then look to the left ... I use it on the lowest setting and it illuminates the whole road
and saying that, this may be a good backup light for audaxes (or for those who dont use dynamo, and who wanta decent powered bright light for cheap .... runs off a powerbank, so if you have a decent sized powerbank, you have strong light for several nights without having to recharge?
and even if you are using dynamo lights, there may/will be a time when you are riding on very dark crappy pothole roads, and an extra strong headlight will come in handy
So .... Buy One .... its cheap