Originally Posted by
mechBgon
If you ride on an MUP, maybe. The MUP requires very close passes, and some people will have no lights, or weak ones, and therefore will be easily "swamped" by any strong light.
On the city street, don't worry about it in the slightest. On dark highways, use your judgement.
+1
If you ride on an MPU/dedicated bike road I've found that high powered lights blind other riders. On the street in the city a life saver. On the small stretch of dark road I ride about twice a year a car will flash it's high beams at me.