I am planning a ride that includes the French Alps on roads with tunnels. I normally use just running lights. But, I've purchased a very bright headlight for use in the tunnels.This is the one I bought: https://cycletorch.com/product/shark...light-set.aspx

When I ride around San Francisco, where I live, I like to use a blinking headlight to increase my visibility. The Shark 500 is many times brighter than my current front light and I wonder if it is a good idea to use the Shark 500 (mostly to test it) as a blinking light on my training rides. My concern is that it is so bright that it might cause problems to/complaints from people coming toward me who have to see this extremely bright light as they approach. I know I don't like it when I have to ride toward them!