I'll be honest i hate those really bright lights. I get blind spots in my vision when coming across them during daytime already and don't want to imagine how blind they'd make me at night. I also don't see the use of them. I have my small light that came with my bike and see by far enough at night.
Make sure to buy lights that follow German StVZO regulations if you're on the road. They're not necessarily expensive. they have controlled beams with a horizontal cutoff so they don't blind people, like motor vehicle lights.
Actually I got it on Aliexpress (link). There might be better priced options but I got this one because it comes with an adaptor for GoPro mounts so I could mount it under my bike computer. It's otherwise much too heavy and large to mount on handlebars.