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  • BOSCH GLL50-20G 50 Ft Green-Beam Self-Leveling Cross-Line Laser, Includes Integrated Magnetic Mount, 2 AA Batteries, & Soft Pouch
  • Bosch GLL50-20G Green-Beam Self-Leveling Cross-Line LaserBOSCH (S-B Powertools)
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BOSCH GLL50-20G 50 Ft Green-Beam Self-Leveling Cross-Line Laser, Includes Integrated Magnetic Mount, 2 AA Batteries, & Soft Pouch

4.6 out of 5 stars (357)
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Style: 50ft
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About this item

  • POWER FLEXIBILITY: The laser works with two AA batteries (included) or Bosch's 3.7V Lithium-Ion 1.0 Ah battery (sold separately), for less downtime on the job.
  • DURABLE: The laser is IP55 rated to withstand tough jobsite conditions such as rain or dust.
  • ACCURACY: The laser has bright, thin lines that level within 5/16 inch accuract at 30 feet.
  • GREEN-BEAM: The laser lines are up to 4x more brighter than standard red beams.
  • SELF-LEVELING- The smart pendulum system self levels and indicates out-of-level condition by blinking and locks when switched off for secure transport.
  • EASY-TO-USE: The laser is egonomic, compact and lightweight for easy use and storage.
  • INTEGRATED LASER MOUNT: The laser is equipped with a magnetic mount for use in all types of working environments.
  • CLASS II LASER: 630 - 650 nm; <5 mW.

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    BOSCH MEASURING TOOLS

    Measuring tools from Bosch offer outstanding precision and the greatest ease of use. Due to their robustness, the digital measuring tools assure the most accurate results also in day-to-day construction site applications – whether it be levelling, measuring distances, angles and inclines, or detecting all different kinds of materials.

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    DETECTION

    With the professional detectors from Bosch, you will find magnetic and non-magnetic metals, power cables, wooden substructures or even plastic pipes. Achieve precise and easy problem analysis with Bosch's intuitive thermal detectors, providing accurate measurement of temperature and humidity alongside fast documentation thanks to the integrated camera.

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    LASER DISTANCE MEASURES

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    INTERIOR LEVELING

    Precise lines with high visibility for the professional user. Fast horizontal and vertical alignment of lines: Effortless and highly precise with the self-leveling line lasers from Bosch. Sturdy, robust, practice-oriented – the easy-to-operate line lasers quickly deliver precise results both indoors and outdoors.

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    EXTERIOR LEVELING

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From the manufacturer

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POWER FLEXIBILITY

Works with (2) AA batteries (included) or Bosch’s 3.7V Lithium-Ion 1.0 Ah battery (sold separately), for less downtime on the job.

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JOBSITE TOUGH CONSTRUCTION

IP 55 rating offers dust and water resistance.

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INTEGRATED MULTIPURPOSE LASER MOUNT

Positions and mounts with magnets or threaded mounts (1/4 In. – 20).

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BRIGHT GREEN-BEAM LASER

Projects up to 4X brighter than standard red beams.

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CROSS-LINE MODE

Projects two bright, level and plumb lines.

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SMART PENDULUM SYSTEM

Self levels, indicates out-of-level condition by blinking and locks when switched off for secure transport.

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FULL RUBBER OVERMOLD HOUSING

Helps protect every major impact point, with a design similar to a roll cage.

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ERGONOMIC, COMPACT AND LIGHTWEIGHT

Making the laser easy to use and easy to store.

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SECURE LASER TRANSPORT

After switching off, pendulum locks for secure transport.

Product Description

The Bosch GLL50-20G 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 feet range that allows for leveling within a 1/4 inch accuracy at 30 feet, it’s a must-have for any tool bag. With its power flexibility, operate using the included AA batteries or purchase the Bosch 3.7V Lithium-Ion 1.0 Ah Battery (sold separately) that can even be used while charging to diminish downtime. 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 inch threading mount that fits with like-sized tripods.

Product information

Warranty & Support

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BOSCH GLL50-20G 50 Ft Green-Beam Self-Leveling Cross-Line Laser, Includes Integrated Magnetic Mount, 2 AA Batteries, & Soft Pouch

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Customer reviews

4.6 out of 5 stars
357 global ratings
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Customers say

Customers find the laser level works well, with one mentioning it's reliable for both indoor and outdoor jobs, and appreciate its self-leveling feature and ease of use for big projects. They consider it good value for money and versatile, with one customer noting it's ideal for professional and DIY projects. Visibility receives mixed feedback - while some say it's very visible even in daylight, others find it hard to see.
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31 customers mention functionality, 24 positive, 7 negative
Customers find that the laser level works extremely well, with individual reviews highlighting its effectiveness for hanging picture frames, leveling shelves, and being reliable for both indoor and outdoor jobs.
works great - self leveling -green laser.Read more
Too dim out doors, but works great inside.Read more
Works great with my camera tripod and the magnetic backing is strong if I want to set it on my portable workbench....Read more
...No mfg. packaging or instructions. Installed batteries and the level did not work. Tried new batteries….did not work....Read more
22 customers mention quality, 21 positive, 1 negative
Customers find the laser level to be of good quality, with one customer noting that their finished project was perfectly level.
Great tool, precise and clean, visible lines. Perfect for the job siteRead more
Don't know how I went this long without one. Great Product, Great price.Read more
This Bosch laser level is awesome, it made my projects a breeze....Read more
Very good laser levelRead more
13 customers mention self-leveling, 10 positive, 3 negative
Customers appreciate the laser level's self-leveling feature, which provides instant leveling, with one customer noting it can be set at different heights and another mentioning easy side-to-side adjustments.
My first laser level and I love it. self leveling, green light, and compact. It works great for everything I have used it for....Read more
Using it to lay out pipe and pipe racks. The self-leveling feature is great. So far so goodRead more
...The self-leveling function is fast and reliable, saving precious time....Read more
I may be too stupid to use this item, but for me, the self-leveling option was too inconsistent to be trusted....Read more
12 customers mention ease of use, 11 positive, 1 negative
Customers find the laser level easy to use, particularly for big projects, and one customer mentions it makes arranging artwork simple.
...Very accurate and easy to use. For the price I would recommend.Read more
Like this. Work great and very easy to useRead more
...Just installed wire hider runners and was easy to make it all level. You really need the tripod to make this product effective.Read more
...The laser made aligning and arranging the artwork easy. I will have many other uses for it in the future.Read more
10 customers mention value for money, 9 positive, 1 negative
Customers find the laser level to be a great value for the price.
Don't know how I went this long without one. Great Product, Great price.Read more
The product arrived on time. The price-quality ratio is at an excellent level.Read more
...My finished project was spot on level. This tool is worth every penny.Read more
Great product for the priceRead more
8 customers mention versatility, 8 positive, 0 negative
Customers find the laser level versatile, with one mentioning it's a game changer for building work and DIY projects, while another uses it for setting up picture frames and leveling patios.
Great for solving many construction issues. I used it to project various measurements marked on the floor to the ceiling; saved a lot of time....Read more
...It's a game-changer for any professional or serious DIY enthusiast, delivering consistent and precise results.Read more
This was to help me set up pictures and items in my new home. Boy, I did not expect this to work so well....Read more
...provides incredibly precise readings, making it ideal for professional and DIY projects....Read more
14 customers mention visibility, 8 positive, 6 negative
Customers have mixed opinions about the laser level's visibility, with some finding it very visible even in daylight, while others report it being hard to see.
...One thing I did like it was that the laser lines are really bright and thin. But that's not good enough for me.Read more
...I was wrong. The beam is barely visible and doesnt reach very far at all....Read more
...At approximately 8 feet from the wall it projected an easily visible cross hair that extended 5 feet horizontal in both directions....Read more
Too dim out doors, but works great inside.Read more
9 customers mention line visibility, 4 positive, 5 negative
Customers have mixed opinions about the laser level's visibility, with several noting that the horizontal line is only visible up to 10 feet and the vertical range is short.
...This works very well. However, I'm giving it 4 stars, as the line width isn't great....Read more
...This one is brighter in the middle and the line is crisper, but the horizontal line visibility drops off quickly as you move to the side and doesn't...Read more
...were not blinking, but it was very clear that the lines were it level nor perpendicular. All-in-all, for me. this item was not to be trusted.Read more
Great and convenient for a horizontal line. Vertical line is not plumb when checked with multiple bubble levels....Read more
Makes big projects much easier and precise.
5 out of 5 stars
Makes big projects much easier and precise.
Used the laser level extensively for a big walk in shower tile job. Pretty intuitive to use and manage with the right tripod(s). I used a small flexible gorilla pod for near the floor to get low level lines on the wall and a taller tripod I’ve used for photography on the taller level lines. Really made the project move smoothly versus having to use a 2 or 4’ level to constantly check level across rows of tiles as well as vertical lines for bullnose finishing tile.
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Top reviews from the United States

  • Amazon Customer
    5 out of 5 stars
    Great beam visibility & easy to use! I love the self leveling feature!!!
    Reviewed in the United States on March 29, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Works great with my camera tripod and the magnetic backing is strong if I want to set it on my portable workbench.

    Green light beam is strong for my use in the house and garage! I find the self-leveling feature is very convenient and a must have to make quick work for my DIY projects.

    It was professionally packaged and the included pouch is very nice to have when storing after use; keeping my tools clean and protected when in my garage is important to me.

    One person found this helpful
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  • Adrian Dobrei
    5 out of 5 stars
    Bosch Digital Level – Precision and Quality at Its Best!
    Reviewed in the United States on February 11, 2025
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Why I Love It:

    ✅ High Accuracy: The digital display provides incredibly precise readings, making it ideal for professional and DIY projects.

    ✅ Easy-to-Read Display: The illuminated, large LCD screen ensures clear visibility, even in dimly lit environments.

    ✅ Durable and Sturdy: The rugged construction with IP-rated protection makes it resistant to dust and water.

    ✅ Multiple Measurement Modes: It supports various angle measurements, including degrees, percentages, and millimeters per meter.

    ✅ Audio Indicator for Alignment: The beep function helps when you can't keep your eyes on the display, which is a great feature for hands-free leveling.

    ✅ Long Battery Life: It lasts through extended use, making it reliable for both indoor and outdoor jobs.

    6 people found this helpful
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  • Rico
    5 out of 5 stars
    Good level for the money
    Reviewed in the United States on April 16, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Great product

    Sending feedback...
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  • Jon W.
    4 out of 5 stars
    Good for straightforward, simple tasks, but line width isn't great
    Reviewed in the United States on April 24, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Had never used a laser level before, and I'm sorry I waited so long. This works very well.

    However, I'm giving it 4 stars, as the line width isn't great. Not a huge deal for most situations, but the level line isn't perfect (I suspect none are), which is why you need to be able to see how far off it is. But this one makes that harder than necessary because you have to work around the limited width.

    Sending feedback...
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  • murtech
    5 out of 5 stars
    This works great
    Reviewed in the United States on May 8, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    I have been using it to help me put up shelves that are level. I put it on a tripod across the room when I'm putting up shelves.

    Sending feedback...
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  • Tamashii
    5 out of 5 stars
    Great lil level
    Reviewed in the United States on April 8, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    I really like this little guy. I can actually see it except for in the full sun it’s still hard to see. But still a very good level.

    Sending feedback...
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    Sending feedback...
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  • Trina
    5 out of 5 stars
    Very visible even in daylight
    Reviewed in the United States on May 7, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Great value for the price. The laser has excellent self leveling and is bright even in daylight settings. I don't know how I got by without one for so long!

    Sending feedback...
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  • TRep
    5 out of 5 stars
    Review
    Reviewed in the United States on May 6, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Does the job nicely.

    Sending feedback...
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Top reviews from other countries

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  • Jose
    5 out of 5 stars
    Bosch laser level
    Reviewed in Australia on July 13, 2024
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Works very well and great price

    Sending feedback...
    Thanks, we'll investigate in the next few days.
  • JUAN CRUZ OCHOA RUIZ
    5 out of 5 stars
    BUEN PRODUCTO DE CALIDAD Y PRACTICO
    Reviewed in Mexico on February 25, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    BUEN PRODUCTO CALIDAD PRACTICO PARA SUS FUNCIONES

    Sending feedback...
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    Translated from Spanish by Amazon
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  • William Savoie
    5 out of 5 stars
    A must if you own a house
    Reviewed in Canada on May 27, 2026
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    I installed 5 sets of shelfs, 1 sliding barn door, 2 mirrors, 3 paintins, 1 coffee shelf and 1 jacket hanger very easily and PERFECTLY.

    Sending feedback...
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  • TJHarding
    4 out of 5 stars
    Durable, compact & accurate
    Reviewed in Australia on July 29, 2024
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    Great value for money!

    Sending feedback...
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  • Juan
    5 out of 5 stars
    calidad precio
    Reviewed in Mexico on March 28, 2025
    Style: 50ft
    Brief content visible, double tap to read full content.
    Full content visible, double tap to read brief content.

    un láser básico de excelente calidad y materiales cumple su función bastante resistente se me cayo de una altura de 2mt y sin problemas, una luz muy nítida para interior esta perfecto con un alcance muy bueno, aunque si lo vas a usar en exteriores a plena luz de día tal vez no sea lo que buscas

    Sending feedback...
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    Translated from Spanish by Amazon
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Product Summary: BOSCH GLL50-20G 50 Ft Green-Beam Self-Leveling Cross-Line Laser, Includes Integrated Magnetic Mount, 2 AA Batteries, & Soft Pouch

From Bosch

4.6 out of 5 stars, 357 ratings

Customer reviews

200+ bought in past month

Price

One-time purchase: $118.85

Purchasing options

Other sellers

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About this Item

  • POWER FLEXIBILITY: The laser works with two AA batteries (included) or Bosch's 3.7V Lithium-Ion 1.0 Ah battery (sold separately), for less downtime on the job.
  • DURABLE: The laser is IP55 rated to withstand tough jobsite conditions such as rain or dust.
  • ACCURACY: The laser has bright, thin lines that level within 5/16 inch accuract at 30 feet.
  • GREEN-BEAM: The laser lines are up to 4x more brighter than standard red beams.
  • SELF-LEVELING- The smart pendulum system self levels and indicates out-of-level condition by blinking and locks when switched off for secure transport.
  • EASY-TO-USE: The laser is egonomic, compact and lightweight for easy use and storage.
  • INTEGRATED LASER MOUNT: The laser is equipped with a magnetic mount for use in all types of working environments.
  • CLASS II LASER: 630 - 650 nm; <5 mW.

Product Description

The Bosch GLL50-20G 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 feet range that allows for leveling within a 1/4 inch accuracy at 30 feet, it’s a must-have for any tool bag. With its power flexibility, operate using the included AA batteries or purchase the Bosch 3.7V Lithium-Ion 1.0 Ah Battery (sold separately) that can even be used while charging to diminish downtime. 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 inch threading mount that fits with like-sized tripods.

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  • 50ft
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