alternate flash fog lights
 

i have a set of fog lights on my brush guard. is there anything i can easily set up to make them alternate flash back and forth? or would they just burn out really fast

a turn signal flasher on a DPDT relay would do it, but it would be annoying and ilegel to use.

hmm. would that be a hard install. and i'm not sure of the legality in good ol taxachussettess.

If you're volunteer fire or EMS, it's perfectly legal, as long as they're (insert FF/EMS color here)

Whelen makes a pretty cheap wig wag flasher.

Whelen Headlight Flasher Wig-Wag UHF2150A from SWPS.com

most likely illegal... definately illegal in ontario, when used on the road. Nothing illegal about using them in your driveway, or having the equipment to use them.

What for?
I agree with the likely illegal. Impersonating an officer/ems person etc would be brought up.
Yes, I also agree with you that they would likely burn out quicker. At least with incandescents and CFLs (yah, not quite the same as your halogens) the most wear occurs with lots of on/off use.