An LED aluminium profile is typically used to protect LED tape lights and distribute their light evenly. It comes in different shapes, sizes, and depths and can be mounted in various ways. When left alone, strip lights appear too bare and susceptible to damage. In visible areas, they do not look appealing when switched off.

From my perspective, the best way to conceal a strip light’s exposed circuit board without diminishing its light quality is to enclose it in an LED profile. That way, the installation would have a cleaner and more refined finish, and the illumination would be uniformly dispersed throughout the space.

Generally, LED profiles come in 1—to 2-metre lengths. However, what if you need something shorter? Can you cut it? Yes, and it only requires a few simple steps!

  • Slide the diffuser into the aluminium profile
  • Measure and mark the length you need
  • Cut the profile with a hand saw or cutting equipment

What are the Different Types of LED Profiles?

As I mentioned earlier, there are many types of LED profiles, making it possible to install them using different methods. The most common are:

  • Surface-mounted profiles: It’s the easiest to install since you don’t need to make extra cuts on the surfaces where you wish to mount. You only need to attach it using brackets!
  • Recessed profiles: You will need to trim a groove on your chosen surface so the profile fits snugly and sits seamlessly flush.
  • Flexible profile: This will give you more freedom with the shapes and designs you want to do, as it can keep up with the flexibility of the LED tape light!
  • Corner profiles: For this, it’s specifically designed to fit the 90-degree angle corners, which are perfect for your floor and ceiling corners, shelves, cupboards, and cabinetry.
  • Waterproof profiles: These are excellent for areas exposed to water and moisture and work for indoor and outdoor applications.

Why Do You Need to Cut an LED Profile?

It’s very rare to find shops that sell LED profiles in customised lengths. Usually, they come in 1-metre or two-metre lengths, so you’ll be forced to trim them one way or the other! Although you have the option not to cut, if you want to achieve a flawless look, I highly suggest measuring the lengths you need and trimming the profile to size.

bedroom with LED profile

How to Cut an LED Profile?

Cutting an LED profile is pretty straightforward. The key is to ensure you have the correct measurement and that the diffuser and profile are secured together so you will get the same length.

Step 1: Slide the diffuser into the profile

Ensure that the diffuser is attached securely to the profile. If you have to put the end caps to guarantee that nothing will move when you cut, do so.

Step 2: Measure and mark

Get your measuring tool and measure the length you need. Double or triple-check before marking. Once you’re sure, put a cut mark on the profile. Say you want to avoid drawing on it directly. If so, I recommend grabbing masking tape or painter’s tape, sticking it over the profile, and drawing the mark on the tape. Avoid stickers or tapes with a very sticky adhesive so they will not leave any residue on the profile.

Step 3: Cut

You can choose between a hacksaw, a mitre, or a cutting machine if you want the process to be faster. Say you opted for the hacksaw or mitre. Ensure that you have an appropriate blade designed to cut aluminium. Please don’t use a rusty blade because it will not give you a clean cut.

In addition, guarantee that all safety precautions are in place before doing anything and wear safety gear.

Step 4: Smooth the trimmed edges

To achieve a smooth finish, grab sandpaper and buff the edge of the profile. This step is crucial because it ensures that the profile sits perfectly with each connection.

Step 5: Test the fit

Before finalising everything, test if the trims are correct and it’ll fit the space. This will give you more leeway to correct miscalculated measurements early in the project. It’d be more troublesome if you finished mounting the brackets, then you’ll notice the profile does not fit!

Aluminium profile banner


Cutting an LED aluminium profile is surprisingly easy, right? So, don’t be afraid to give it a try! Just ensure that your measurements are correct, your markings are accurate, and your trims are precise. It’s worth all the effort because you’ll be able to execute the installation you want and achieve a perfect final look!

If you need help finding high-quality LED profiles, visit our website, Simple Lighting! We have an extensive collection of surface-mounted and recessed profiles, as well as corner, waterproof, and other varieties!


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