My wife was drove past me last night and she said that my headlight on my bike was as bright as a car headlight! (Cygolite Expilion 850 lumen) I had a small little LED blinky on my fork and she said she did not see it. (it is pretty pathetic) She said the headlight was amazingly bright. I was also wearing reflective suspenders and she said she could not see them either. I think they work better for people coming up behind me instead of coming at me. She said that the headlight looked like a car headlight. [the low battery indicator was blinking at me at this point, good to know it is still bright] I was running it solid at this point in my ride. I sometimes switch to steady pulse. I said wait until i get my other headlight on my helmet. the problem is that I switch helmets. I guess i just need a second mount then I can move the light back and forth.