Line Lasers
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GLL50-20GL Professional

Line Lasers

Green-Beam Self-Leveling Cross-Line Laser with (1) 3.7V 1.0 Ah Battery

  • Power flexibility – works with included Bosch 3.7V Lithium-Ion 1.0 Ah battery or two AA batteries (sold separately) for less downtime on the job
  • Built-in VisiMax™ technology - monitors power consumption to maximize line visibility and extend battery life
  • Bright green-beam laser – projects up to 4X brighter than standard red beams
  • Full rubber overmold housing - helps protect every major impact point, with a design similar to a roll cage
  • Integrated multipurpose laser mount - positions and mounts with magnets or threaded mounts (1/4 In.-20)
  • Jobsite tough construction - IP 55 rated, offering dust- and water-resistance
  • Cross-line mode - projects two level and plumb lines
  • Bright, thin lines with 65 Ft. range - level within 1/4 In. accuracy at a 30 Ft. range
  • Smart Pendulum System - self levels, indicates out-of-level condition by blinking and locks when switched off for secure transport
  • Ergonomic, compact and lightweight - making the laser easy to use and easy to store
  • 1/4 In. threading mount - fits all tripods with 1/4 In. thread
  • Secure laser transport - after switching off, pendulum locks for secure transport
  • Bosch measuring and layout tools are covered by a one year limited warranty with an additional year when you register your tool within eight weeks of purchase - for details, visit or call 1-877-BOSCH99

GLL50-20GL Professional

GLL50-20GL Professional

Your Selection


Order number: 0601065311

Technical data

The most important data

Connected No
Height in 3.9 "
IP Rating IP 55
Laser Beam Color Green
Laser Diode Class 2, <5 mW, 500-540 nm
Length in 4.1 "
Leveling Type Self-Leveling, Up to 3.5°
Material Plastic composite
Mount Threading 1/4-20
Number of Beams 2
Operating Temperature 14° F / -10° C up to 104° F / 40° C
Range Up to 65-ft.
Weight 0.77 lb
Weight (lbs.) 0.77
Width in 2.5 "
Works With Tripods, BT 150, Telescoping Pole System, BP350, Grade Rods, GR 16, GR500, Mounts and Positioning Devices, BM 1, BM3, LB10, MM 2, Battery, GLM-BAT
Includes (1) GLL50-20GL Green-Beam Self-Leveling Cross-Line Laser
(1) GLM-BAT 3.7V Lithium-Ion 1.0 Ah Battery
(1) USB-C Charging Cord
(1) Integrated Magnetic Mount
(1) Soft Pouch

GLL50-20GL Professional: Further information

Product Highlights

The Bosch GLL50-20GL Green-Beam Self-Leveling Cross-Line Laser projects two level and plumb green beams that are up to 4X brighter than standard red beams. Featuring a 65 Ft. range that allows for leveling within a 1/4 In. accuracy at 30 Ft., it’s a must-have for any tool bag. With its power flexibility, operate using the included Bosch 3.7V Lithium-Ion 1.0 Ah Battery that can even be used while charging to diminish downtime or with two AA batteries (sold separately). Built-in VisiMax™ technology optimizes line visibility and runtime for working conditions to further maximize usage. Its ergonomic, compact, lightweight design and IP55 dust- and water-resistant rating, provide for both comfortable and dependable operation. The full rubber overmold housing helps protect every major impact point, acting like a roll cage to safeguard the tool. Equipped with a Smart Pendulum System, the tool self levels, will indicate any out-of-level condition by blinking and then locks when switched off for secure transport. Simply tilt the laser to use the lines at an angle with ease. Position the tool with the included integrated magnetic mount or utilize the 1/4 In. threading mount that fits with like-sized tripods.

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