You guys both make good points and should be aware that this is not a black / white issue and that there are shades of grey.

I think Robert recognizes that under some circumstances brighter lights are required (he has said as much) but is also correct in saying one can go too far when it comes to applying lights to one's bike.

Any discussion on lighting should include a discussion on safety / etiquette / courtesy as most of us who ride any amount have found ourselves getting blinded by motorists and with better technology cyclists now possess the same capacity.

bionnaki - get the PB Superflash... you won't get better bang for your buck than you can with this light.

But don't run the strobe at night... it is viciously bright.