1. 16-line 4D Green Laser Level: The laser level generates 16 laser lines, including 8 horizontal lines, 8 vertical lines, and 10 cross lines, making it easier to apply to floors, ceilings, and plastering work. The laser lines can be changed according to work needs. The laser level can be used for various purposes. 2. Visible Indoors and Outdoors: Our laser level optical measuring glass has good light transmittance and clear laser lines; it has five levels of light brightness adjustment, allowing you to adjust the laser brightness and thickness according to the ambient brightness. The light is brighter in the sun and thinner in the dark, protecting your eyes and ensuring the accuracy of the light. 3. Automatic and Manual Leveling Modes: - Automatic leveling mode: After being turned on, the automatic leveling mode is enabled by default. When the device exceeds the self - leveling range (4 degrees), the laser beam will flash rapidly. - Manual/tilt mode: After power - on, long - press the V button for 2 seconds to switch to the manual mode, and the LED indicator will turn red. 4. 3° Self - leveling Function: It has a self - leveling function with a leveling range of ≤3°. However, if the angle exceeds 3°, the laser light will flash continuously and emit a beep to remind you to place it back on the ground. Long - press the OD button for a few seconds to switch to the manual mode, and you can draw diagonal lines as needed. 5. Wide Applications: It is suitable for assisting in tile laying, wall decoration, floor tile fixing, railings, ladders, etc. It is equipped with a strong - magnetic wall - hanging bracket and 1/4 and 5/8 threaded interfaces to meet different installation methods. It is equipped with a 360° lifting platform base, Class 2 (IEC/EN60825 - 1/2014).