yeah, 170's. I can't believe how light they are! I read such good reviews and had problems w/ Daylighters on my old PF shifting around that I thought I'd make the leap to the Lightforce and couldn't be happier.
I live in deer country here in PA so I use them pretty much every night on the way home from work to get good coverage on the sides of the road.
Since you can rotate the lens to get different light throws they are very versatile.