Originally Posted by
fietsbob
in the trees
Some people don't mind. Very useful for riding in wooded area with low branches. You should talk about your dynamo lights more.
Originally Posted by
PaulRivers
I've seen it in person with different light output modes on lights. I've seen it talked about more scientifically on wikipedia, but didn't find it in a super quick search. I know I've read through it before. I couldn't tell you more info than I'd get searching google right now.
That's because the most frequented posters hanging out in this subforum is all about dynamo this and dynamo that, or self contained light this or that. mtbr's light subforum has much more info on battery powered lights.
Originally Posted by
PaulRivers
There's no doubt that if you're willing to live with less reliability, waterproofness, etc that off-brand lights are cheaper.
However, there's also no doubt that the Light and Motion Lights tend to be rated fairly accurately, while the off-brand lights tend to be rated at about twice what they can actually put out. A 1300 "lumen" light from a company in china likely puts out about 650-750 lumens.
Like I said though, I've chased through about $1,500 worth of bright lights, and there is no point in getting a brighter light with a less-good beam pattern. The only reason the Seca combination works is because they happen to make a good beam pattern together, with no hotspot. They're all usable and sitting together in my garage, but I continue to prefer the shaped beam lights.
China lights have advertised lumens from 150% inflated to 500% inflated. Realistically a single led (Cree X-ML) puts out 500-700 lumens depending on drivers used, not the advertised 1000 lumens. A dual led lamp will be at least 1000 lumens on high, way brighter than lights you recommend and way cheaper.