OK, so I had to do it. You can consider me one of the brainwashed Dinotte cult, but here's an interesting story. I've had a 600L / 140L headlight /tail light set for the last couple of years. Lately, since the sun is just thinking about rising on my commute in in the mornings, I've started using lights again.
The day before yesterday on the way in, I passed a jogger. Jogger says, "Wow! That's a BRIGHT light!" "Yea", I said. "Nice", he said. A little while later, a city cop slows his cruiser way down as he approaches me from the other direction. "That's the BRIGHTEST light I've ever seen!", he says. "Thanks. I love it.", I say. "Awesome!", he says. I pass a school crossing guard a little later. She says "That light's really Bright! I like it." "Me too. Thanks.", I say.
Honest, I'm not making this stuff up. This was 1 trip into work. So for the people who are worried about "blinding" drivers with these lights, I wouldn't worry about it. I've had positive comments over the last couple of years about these lights from all the drivers I know who have seem me. Mainly, they appreciate being able to see me.
My commute consists of everything from quiet, dark country roads to more crowded city streets. I feel totally comfortable riding in any conditions with these lights, including fog. I also have no problem spotting glass on the road before I hit it. I know that there are many people who say you don't need lights this bright, but I couldn't go back to anything less bright.
I can't say that I didn't have a couple of warranty issues with the lights after I bought them, but Dinotte's customer service is second to none, and they even took care of me, no questions asked, one time when I was technically out of warranty.