It's no steiner... but it's worth what you pay for it... - VISM QR Laser Designator Box w/Green Laser Sight

I have 2 of these VISM designators. 1 is an older model and it's ROCK SOLID! No issues. I run it on a 9mm PDW. Holds zero like a champ. However, this new model, not so much... The adjustment set screws literally wobble in the casting. That's a fail.
As for the beam brightness and power consumption, it's stands right alongside my Steiners (USA) and Holosuns (China). No complaints. But the overall build is just subpar and inferior. It's not something I'd trust in a real fight under real conditions. It just points in the general direction of your gun fire.
Given the price point, you get what you pay for.
Grandpa always said, "Don't be afraid to get the best, you'll rarely be disappointed."