Originally Posted by
SlimAgainSoon
Too fast -- pretty dang obnoxious. Can induce fits.
I have three lights on my helmet -- two Fenix and a no-name. No-name has a fast flash but nothing like the Fenix. It doesn't induce spastic reactions. So I put it on blink.
The Fenix flashlights I either burn on medium or put on the S.O.S. flash -- much slower.
With both doing the S.O.S., I usually have one of them beaming at any moment, sometimes two. Rare instance when both are dark, the no-name blink provides adequate light for a second.
It helps that most of my route is over roads lit with street lights.
But I never use the Fenix in the hyper-flash mode. Too bright, too fast -- not very neighborly.
There's no future in causing blindness in those in command of two tons of steel.
Be careful that overflying planes don't call in the SOS signal on your behalf!
IMO, a consistent strobe (8-30 Hz, even/odd parity) front LED light is a *very, **very** bad* idea. An incandescent strobe, or rather flicker (e.g. an AC dynamo halogen at slow speed), isn't such a problem as the light source seems to go between bright-less bright, whereas an LED is Bright-off -- a true strobe effect. The LED strobe is a *major* problem for some people (myself included). A cyclist (again, such as myself) might have the presence of mind to pull over and cover his/her eyes until the noxious stimulus has passed, but a motorist might plow 2 tons into some random object.