Arrogant Safety Nanny
Join Date: Apr 2007
Location: Santa Maria, CA
Bikes: 2007 Trek 7.2 FX, 2008 Trek Madone 5.2
I use a Fenix P3D in strobe on my helmet during the day, steady on (turbo mode) at night. At night I also use a 15W halogen bar mounted light.
The strobe is great during the day...really gets peoples attention when needed and has stopped a few drivers that were obviously planning on turning left in front of me or pulling out of a driveway in front of me.
Strobe at night would be way too distracting to other road users, and to me as well. If I'm in a situation where I need a strobe like effect at night I can just look directly at the driver of the vehicle, then move my head up and down to get their attention.
If you don't already have a light on your helmet I'd suggest putting one there. They're very useful for getting the attention of drivers coming out from the sides...just gotta look over at them and they see you coming. Also while making turns you can direct the light where needed.