Bosch Green-Beam Self-Leveling Cross-Line Laser (GLL50-20G)

Experience professional-grade precision with the Bosch GLL50-20G Green-Beam Self-Leveling Cross-Line Laser. This compact tool projects two bright green lines—horizontal and vertical—up to 65 ft away, with ±¼ in accuracy at 30 ft. Built for the toughest job sites, it combines advanced optics and rugged design to help you tackle leveling, alignment, and layout tasks faster and more accurately.

Powered by two AA batteries (included) or Bosch’s 3.7 V Lithium-Ion 1.0 Ah battery (sold separately), the GLL50-20G features built-in VisiMax™ technology to optimize line visibility and extend runtime. Its Smart Pendulum System self-levels, alerts you to out-of-level conditions, and then locks for safe transport. With an IP55 rating and a full rubber-overmold housing, this laser withstands dust, rain, and impacts. Mount it magnetically or on any ¼″-20 tripod thread for flexible positioning.

Key Features

• Power flexibility: runs on (2) AA batteries (included) or optional Bosch 3.7 V Li-Ion 1.0 Ah battery
• VisiMax™ Technology: monitors power consumption to maximize line brightness and runtime
• Bright green-beam laser: up to 4× brighter than standard red beams
• Cross-line projection: simultaneous horizontal and vertical lines for fast layout
• Smart Pendulum System: auto-levels, indicates out-of-level, and locks pendulum for transport
• Durable IP55 jobsite rating: dust* and water-resistant construction
• Integrated multipurpose mount: magnetic attachment and ¼″-20 threading for tripod use
• Full rubber overmold housing: impact protection on key contact points
• Compact ergonomic design: 4.1″ × 2.5″ footprint and 12.3 oz weight