This 3-line self-leveling green laser level features a green beam for clear visibility on the job site. This laser features a second plumb line that forms a 90-degree intersecting line on the floor and ceiling, ideal for installing lighting or cabinets. An integrated magnetic pivoting bracket mounts easily to metal surfaces for convenience. This DEWALT green laser level also includes a fine adjustment knob for precise alignment of 90-degree intersecting lines over longer distances.