Bosch GLL50-40G Green-Beam Self-Leveling 360° Cross-Line Laser | Includes Case, Batteries, L-Bracket, & Ceiling Clip

Overview

The Bosch GLL50-40G Green-Beam Self-Leveling 360° Cross-Line Laser is designed to simplify room-wide leveling with a bright, easy-to-see green beam. Brightness matters in typical indoor lighting, and this model delivers up to 4x more visibility than standard red beams. With a working range of up to 100 feet in diameter, you can project reference lines across an entire room from a single setup point, helping you reduce repetitive adjustments and speed up calibration tasks.

Projecting a vertical line, a 360° horizontal plane, or a cross-line, the device adapts to a variety of alignment tasks. The 360° horizontal plane can be used alone or with the vertical line for flexible layouts, making it suitable for tasks like cabinetry installation, picture hanging, tile layouts, or wall panel alignment. One setup point for the full room translates into fewer moves and quicker reference points, while the two-line modes give you multiple reference references to work from across different surfaces and angles.

Durability and reliability are built into its design. The full rubber overmold housing protects key impact points, acting like a roll cage, while an IP64 rating guards against dust and water spray on busy job sites. The laser’s smart pendulum system self-levels and clearly indicates when the tool is out of level, and a pendulum lock secures the mechanism during transport. A two-position recessed switch provides added protection for the control, while a one-button onboard interface makes switching between modes fast and intuitive.

Setup is streamlined with practical accessories. The LB10 L-Bracket and DK10 ceiling clip enable quick, secure mounting with strong magnetic hold for convenient positioning on walls or ceilings. The package includes four AA batteries and a sturdy hard carrying case, so you’re ready to work straight out of the box and can transport the tool with confidence.

In real-world use, you might rely on the vertical line to align cabinet reveals precisely, use the 360° plane to trace level lines around a room, or apply the cross-line mode to mark multiple reference points for tile or panel layouts. While results depend on environment and user technique, the GLL50-40G provides a capable option for achieving clean, level layouts without excessive trial and error.

Warranty and support are straightforward: Bosch measuring and layout tools are covered by a one-year limited warranty, with an additional year if you register your tool within eight weeks of purchase. This coverage adds peace of mind across multiple projects and job sites.

• BRIGHT GREEN-BEAM: Up to 4x brighter than standard red beams
• VERSATILE LAYOUT: Vertical line and 360° horizontal plane can be used together or separately
• COVERAGE: Level with one setup point for an entire room; up to 100 ft diameter
• DURABLE BUILD: Rubber overmold housing and IP64 ratings resist typical jobsite conditions
• EASY OPERATION: One-button interface with a two-position recessed switch
• INCLUDED ACCESSORIES: LB10 L-bracket and DK10 ceiling clip for quick mounting

• BOX CONTENT: Laser, 4 AA batteries, LB10 bracket, DK10 clip, hard carrying case
• PORTABILITY: Pendulum self-leveling with secure transport lock
• WARRANTY: One-year limited warranty, plus an extra year with registration