no motor?

I was riding home about 9:30 Sunday evening when my route home took my next too a pair of bicyclists with lights. We were both going the same way but on opposite sides of a 4 lane road for about 2 blocks, and then we went our separate ways. I usually see other bicyclists from the rear or head on, and this was the first time I saw bicycle lights at an angle like this. There were 2 bicycles with what looked like matching lights on both the front and rear, and the front lights looked like they were about as bright as a Magic Shine. I liked being able to see other bicyclists while I'm out riding (a nice change of pace from the ninjas I see), and my eyes managed to survive the awesome display of lumens.