I think with front lamps you really do need to experiment,
especially if riding outside of an urban setting. I have a great collection of lights now, I've bought prolly 50 front and rear over the years to play with, they pretty much all have their uses.
A light is an investment in your safety, but also your riding comfort. I note that some people suffer with different colours (called light temperature iirc) in the same way people do with household lighting. Its a shame the big clubs/shops cant do a day, or rather night where you can try out how a light responds. A few guys on youtube (myself, Magnatom and others) have made some videos of lights, but that only takes you so far.