Projects bright, highly visible green laser lines whatever in dark or light; ideal for tile alignment, wall studding, windows, doors, etc. Three laser-line modes: level, plumb and Cross-Line; accuracy: 1/4 in. At 30 ft; self-leveling capability when within 4 degrees of level Lock (Manual) mode to project laser line in any angles for straight alignment, stair railing, creative wallpaper.Etc. Includes smart Clamp for flexible applications; 1/4'' thread on bottom for camera tripod mount Class II laser product, output ? 1mw