Green vs Red Laser Level Beams: Which is Better?

 Torn between getting a green or red laser level?

Aaron Barnett of BangingToolbox recommends: If you have decided to invest in a job site laser level and are still undecided about whether to get a green or red beam, you’ve found the right website. 

Just like you, our readers often ask us which type to buy. And ask us why green laser beams are mostly preferred.

In this article, we’ll provide a comprehensive comparison of the two colored beams to help you decide what works best for your needs and budget.

Why does beam color matter when working with a laser level?

The projected beam color matters when working with laser levels because the color affects visibility.

 If you always work in a bright environment, seeing the laser lines could be a challenge regardless of color without using a digital receiver attachment. 

Beam colors also matter when determining which one can take the most of the battery life.

Another deciding factor why you have to look into the color of laser beams is your nature of work.

You must understand the most appropriate applications for a green or red beam.

For green beam

A green beam emits a green light with a wavelength measuring 532 nanometers.  As you can see, green is found in the middle of the visible light spectrum, making the line color friendlier to eyes than red beams. 

Green beams on the laser level are produced with a frequency-doubling process [1] and utilize a 2nd infrared laser crystal. Utilizing advanced optics and crystal technology to produce a green beam.

To create a green laser beam in laser levels, it uses an infrared laser beam that passes into an infrared crystal and converts this beam into green light. The infrared beam generally has a longer wavelength than the green beam.

After passing through the infrared crystal, the device emits a green beam that is shaped by lenses and mirrors found inside the laser level. With this technology, green laser levels create more visible light compared to red laser beams.

Why is green laser level more reliable?

• Offers greater visibility to the human eye
• Precise and accurate measurement
• Great for both indoor and outdoor use
• Longer range
• Brighter
• Flexible for different tasks

My few issues with a green laser level

• More expensive
• Takes more power
• Harmful to the eyes if directly shining without protection
• More sensitive to changes in temperature

For red beam

A red beam on the laser level emits red, straight light or a dot from the laser level.

The red beam is on the other end of the visible light spectrum with wavelengths of 635 to 700 nanometers, which explains why the color is harder to see in broad daylight and is four times less bright than green beams.

The red beam is generated by semiconductor diodes emitting a light minimum of 635 nm. This beam passes through optic lenses and mirrors and produces a red beam or dot. 

Some red beam laser levels have a combination of red lines and dots. This type of red beam laser level is more technologically convenient to produce.

For this reason, red beams are commonly used for indoor leveling projects and carpentry. And are still easy to visualize indoors.

Why is red laser level practical?

• More affordable
• Not power hungry
• Can stand changes in temperatures
• Best for indoor use
• Easily accessible

The drawbacks of red laser levels

• Less visibility, especially outdoors
• Works on a shorter range

Applications: Where to use a green or a red laser level?

Green laser levels

Green beam lasers are widely used in different applications in the field of surveying, construction, and engineering. 

• Grading
• Drainage
• Plumbing
• Installation of walls, ceilings, and floors
• Marking boundaries
• Aligning garden beds and fences
• Masonry alignment
• Leveling ground

Red laser levels

Red beam lasers are much preferred for indoor leveling jobs.

• Setting foundations or framing
• Tile installation
• Flooring
• Laying out plumbing systems
• Laying out electrical systems
• Hanging cabinets
• Picture frames
• Building decks, patios, and countertops
• Laying masonries such as bricks and blocks
• Measuring elevations
• Aligning garden beds
• Marking garden beds

Range: How far can a laser measure accurately?

The laser level range is the maximum distance the laser line can reach.

In general, green laser levels have a longer range than red laser levels. 

Whether indoors or outdoors, the light emitted by a green laser could go farther than a red laser level. 

This is due to a lot of factors that green laser levels can meet:

• Refraction
• Environment
• Reflection
• Scattering
• Polarization
• Dispersion
• Wavelength

Outdoor use

The maximum distance the laser beams can reach outdoors depends on many factors.

Unlike indoors,  the light outdoors is not enclosed and does not scatter outside the walls.

The level of sunlight and brightness outside will play a huge role in the visibility of the laser-level beams.

Outdoors, a green laser level can reach beyond 60 ft and even 100 ft, while a red laser level can struggle to show up in broad daylight.

However, you would need laser detectors for accuracy and convenience in locating the beam.

You can also use a plastic reflector that comes with most red laser levels to locate the line when working outdoors. However, results will vary depending on the distance you are leveling.

Indoor use

Green laser light can reach up to 50 ft indoors. And will also depend on the level of brightness inside the room. Well-lit rooms still favor green laser levels over red ones.

Red laser-level beams can reach up to 30 ft indoors.

Brightness and Visibility

The brightness and visibility of laser beams depend on various factors like ambient light, battery strength, and surface condition.

You will need surfaces with the reflective capability to see a brighter line.

Green laser level uses frequency-doubling technology to generate infrared laser beams that pass through 2nd infrared crystal optics.

The result? A brighter laser beam that could reach up to 100 ft outdoors.

Meanwhile, red beams are generated from semiconductor diodes. That passes through the level’s optics.

If there’s any visibility advantage of red beams, that would be when using one indoors or in dark outdoor areas. Most indoor leveling tasks are done just as well with red laser levels.

Battery life

When it comes to battery life, generating green laser beams uses more power from the battery.

Green laser levels run at higher frequencies than red laser levels. And need more energy to activate the atoms inside the laser level. 

This only means that green laser levels can drain faster than red laser levels because they have a higher energy demand; otherwise, a green laser level requires a larger rechargeable battery supply.

Price

Green laser levels have more advanced technology than red laser levels.

It takes longer to manufacture and include more parts than a red laser level within the shell.

For this reason, red laser levels are more affordable than green laser levels.

Green vs Red laser level beam: Which is better?

To summarize, a green laser level is way more convenient to use than a red laser level.

Whether indoors or outdoors, you can rely on the brightness and increased visibility.

However, green laser levels are more pricey than red laser levels. Additionally, you would use up more energy than if you used a red laser level.

For you to decide better, consider your frequent jobs needing to use a laser level.

If you are a tiler, go for a red laser level. If most of your jobs are indoors, go for red laser levels. If you have to do wall framing in the open air – use green laser levels.

If you do not use a laser level frequently as a DIYer, go for a red laser level to save money.

Check our detailed laser-level reviews over here.