Review on 📏 Optimal Precision with our Cross Line Laser Level Plumb by Mark Ponnusamy

This laser level projects very bright vertical and horizontal green lines. Both bulbs light up at the same time - you can't choose one or the other. I noticed that at first, but can't see why this could be a problem. The self-leveling feature works, as does locking the lines for manual adjustment. I used more plumb points than I expected. They're extremely useful when placing things like ceiling lights, as you can take measurements on the floor instead of the ceiling while balancing on the stairs. And if you have vaulted ceilings, the plumb function saves you the trouble of doing some geometry. I also like that the level has to be locked to turn it off. This doesn't let me turn it off, but the self-leveling mechanism is free to rattle and possibly get damaged. The small stand that comes with the spirit level is fine. I wish the spirit level came with a clip to attach it to stairs/doors/etc like some other brands. to attach, but overall I think this spirit level was much better.