http://yacf.co.uk/forum/index.php?topic=11751.0
Is a slightly out of date group test for lights
I use the German B&M lights which plonk all the light in a flat beam on the road surface.
Some people prefer MTB lights as they splunge a wide tunnel. Of course there is only a finite amount of light available from a bike lamp so if it is lighting up the hedges at the side of the road it is not being thrown ahead. If it is being thrown ahead it is not showing sideroads as well. There is always a bit of a trade off.
Fans of the Magicshine claim that it is so very über powerful that the light will allow enough forward throw for traveling fast
and you can see the hedges
ISTR that on full pelt it does 900 lumens. A car headlamp on full beam is 1500 lumens. But battery life on full power would be limited
The main problem I've heard of with the Magicshine are occasional reliability issues
If I had to go out tomorrow and get a battery powered lighting system my two choices would be
1) budget 2x tesco LED torches, try and get Cree based ones, on lockblocks
2) money no object, 2x B&M Ixon
The reason for having two lights is that it makes the system more reliable and also allows extra plus super light in poor conditions
Both systems run off standard AA batteries, get 2 sets of rechargable 2900mah NiMh
My winter commuting bike has a B&M IQ Fly powered by a Shimano hub generator