Hyperlites are excellent as well.
I found those front lights from Skene to be very effective. I never had anyone come close to turning or pulling out in front of me when they were on. In fact people often changed lanes when I came up behind them. On one occasion riding with a group, something I almost never did, the guy I was following told me that he thought he was going to have a seizure looking in his mirrors. I set them to solid on for the rest of the ride.
I found those front lights from Skene to be very effective. I never had anyone come close to turning or pulling out in front of me when they were on. In fact people often changed lanes when I came up behind them. On one occasion riding with a group, something I almost never did, the guy I was following told me that he thought he was going to have a seizure looking in his mirrors. I set them to solid on for the rest of the ride.