The magicshine with the P7 led is very bright but spills a lot of light which is good for off road but less so for on road without careful positioning of the beam to prevent shining into oncoming drivers eyes. There are lens available that can be used to vshape the beam give a sharper top and bottom cutoff.
The magicshine with the xml-t6 led has much more of a tight beam and is good for off road as a head mounted light.
There are some good prices on these from dealextreme, £32 ish delivered.
The magicshine with the P7 led is very bright but spills a lot of light which is good for off road but less so for on road without careful positioning of the beam to prevent shining into oncoming drivers eyes. There are lens available that can be used to vshape the beam give a sharper top and bottom cutoff.
The magicshine with the xml-t6 led has much more of a tight beam and is good for off road as a head mounted light.
There are some good prices on these from dealextreme, £32 ish delivered.
P7 http://www.dealextreme.com/p/p7-waterproof-ssc-p7-3-mode-900-lumen-white-led-bike-light-with-battery-pack-set-82509
XML-T6 http://www.dealextreme.com/p/t6-waterproof-xml-t6-3-mode-1200-lumen-white-led-bike-light-with-battery-pack-set-82510