My rear light is the Garmin Varia Rearview and that adjusts the flashing based on approach speed and proximity of vehicles behind me. It appears to work very well in terms of driver behaviour. I think I need to sort out a decent front light. On my hybrid I have a Lezyne Deca Drive 1500XXL. This is a very heavy and very bright light, to the point that people walking along paths facing me have to cover their eyes. It literally temporarily blinds people. I've tried pointing it down to light more of the road, but it's still too bright and distracts other cyclists too.

Hence, I think I will replace it with a 'better' light that is a better balance between seeing the road ahead of me and also not blinding others.

I feel that one of the dangers of very bright lights is that people can't actually see you on your bike, nor judge how far away you are. All they see is a bright light.