Well...that depends a lot on where you live and what you drive. I probably shouldn't have introduced the comparison to automotive lighting.

Outside of North America, automotive low/dipped beam lights typically have a very crisp cutoff with little or no light above it. US lights were different (read: terrible) for decades because our regulations actually required a soft blob of light with no sharp cutoff. Cibie, Marchall, Hella, et all sold a lot of lights to the sports car crowd back in those days because they actually produced a useful spread of light, unlike the sealed beam glow worms our cars came with.

Some US market cars still have poorly designed headlights with spillage above the cutoff.

At any rate, the Ravemen stuff is probably good enough to be effective, and at a reasonable price.