I ride with a MiNewt light on my handlebars that's quite bright and a flashing LED headlamp on my helmet. Both are within easy reach so I can use them alternately or in combination. It's handy to be able to do this as my route varies from well lit city streets to completely dark MUTS, also 2 lane highways with lots of high beams from oncoming traffic. I cannot even estimate how many times that flashing LED light on the helmet has stopped cars from pulling out in front of me.