【Jalleria 16 Lines 4D Green Laser Level】 The laser level produces 16 laser lines, 8 horizontal lines, 8 vertical lines and 10 cross lines, and is easy to install on the floor, ceiling, etc. for plastering work. The laser line can be changed according to work needs. A laser level can be used for many purposes. 【Always visible. Indoor and Outdoor: Our optical laser level gauge with good light transmittance and clear laser line; There are five levels of brightness adjustment. Light and luminosity, and the laser thickness can be adjusted according to the brightness of the laser. of the environment. The light is brighter in the sun and finer in the dark. to protect the eyes and ensure the accuracy of the light. 【Automatic and manual leveling mode】 Automatic leveling mode: After setting, the automatic leveling mode is activated. by default. If the device is outside the self-leveling range (4 degrees), the laser beams will flash quickly. Manual/Tilt mode: After power on, press the V button