Built-in VisiMax™ technology optimizes line visibility for working conditions to further enhance accuracy and battery life. The leveling laser emits three bright green-beam laser chalk lines in 360° laser planes – one horizontal and two vertical for high-visibility and fast, streamlined job setup from one initial point.
New green laser level fantasic price I have been using it and it has come in so handy , hanging doors, laying out a level line around the job site being able to line up with confidence, I found a case that can hold a tripod and the laser level so I don't have to find everything all over each time I want to use it. uses AA batteries. I leave it on for the time used and remember to turn it off.