The Bosch GLL50-40G green beam self-leveling 360 deg cross-line laser uses green beam technology, which emits green lines up to 4X brighter than standard red beams. This gives the laser a working range of up to 100 ft in diameter. The laser produces vertical line, 360 deg horizontal plane and cross-line modes, for a broad array of alignment and leveling applications. It provides 360 deg coverage to level with one set-up point for an entire room. The tool has full rubber overmould housing, designed to be similar to a roll cage, so major impact points are reinforced with rubber. It has an IP64 rating and features deeply recessed windows help protect the laser glass. The one-button on board user interface allows easy selection among the layout modes. The two-position recessed switch provides additional protection of the switch mechanism. The Bosch smart pendulum system self-levels and indicates out of level condition and it locks the pendulum for secure transport. The included LB10 L-bracket and DK10 ceiling clip offer quick set-up and extra strong magnets.