Comment choisir un diffuseur LED pour bandes LED

If you want to use your LED strip with an LED aluminum channel, then you must choose the right profile LED diffuser. There are many types of LED profile diffusers on the market. Each and every model has its own advantages. To make your decision easier, we will take a closer look at these models together with an explanation of each feature in detail.

Dans ce guide, vous apprendrez :

• How the four main diffuser materials (PVC, PMMA, PC, Silicone) compare
• What each diffuser finish – clear, frosted, opal, milky, black, silicon and lens – is best for
• Whether you actually need a diffuser for your LED strip project
• How to pick the right diffuser for your application without losing too much brightness

1. Compare Different Materials of LED Diffusers

The main materials of LED profile cover in the market are PC, PMMA, Silicone, and PVC. The profile diffusers/covers of different materials not only play different roles in anti-scratch, anti-extrusion, and anti-aging but also have an impact on the effect of lighting. Here let’s learn about the pros and cons of each LED profile cover material.

PVC

It is quite flame resistant and has stiffness, resistant to alkalis and acids. The price of PVC is very low, but the moisture absorption and heat resistance are poor, and very easy to turn yellow after using it for a period of time, so fewer and fewer technicians choose PVC as a lampshade.

PMMA (Acrylic)

It is hard and scratch-resistant, has good transparency, insulation, and mechanical strength, and is easy to process. But low chemical resistance and not very resistant to impacts.

PC

It is characterized by the greatest resistance to alkalis, acids, and gasoline. It is flame-retardant, scratch-resistant, and has very good optical properties. However, it is not resistant to moisture – it will become brittle.

Silicone

It is flexible, flame retardant, friction-resistant, and very environmentally friendly. A silicone profile diffuser is easier to install, but has lower light transmittance and a higher price than a PC. As a lampshade, it is generally used for circular aluminum extrusion.

Material comparison at a glance

2. Compare Different LED Profile Diffusers

Different LED profile diffusers can be used for different purposes. For example, you can use them to light up a stage or for advertising purposes. You can also use these kinds of diffusers at night to lighten your outdoor area or garage. There are different types available in the market like a grid-less diffuser and circular diffuser that produces an even distribution of the light source.

Each of the above profile covers plays its role in LED lighting which isn’t only the look of the installation itself when the lighting is OFF but each type diffuses the light in a different way when the lighting is switched ON. Below we compare the most common LED profile diffusers side by side.

Clear profile diffuser

Highest light output with about 90~95% transmittance. The LED strip is clearly visible, and each LED spot can be seen directly. Best for indirect cove lighting where the strip itself is hidden, or when you want maximum brightness.

Frosted profile diffuser

85~90% transmittance rate, the decrease in brightness is not very large. However, the LED strip is mainly covered, and they reduce hotspots significantly.

Opal profile diffuser

About 75% transmittance rate. It’s a sort of opal white coating that helps diffuse the light evenly. And can minimize hotspots. It’s decorative when switched off, as we don’t see into the profile, and the LED strip is not visible.

Milky profile diffuser

65~70% transmittance rate. A milky diffuser is more opaque than an opal diffuser and eliminates hotspots completely. It doesn’t really give the max light output, and you may install a brighter LED strip to increase the brightness.

Black profile diffuser

About 60% transmittance rate. It completely hides the light sources, so the LED channel looks like one single LED channel track. It’s also decorative when switched off, just like a circle of black lines.

Silicon profile diffuser

70~75% transmittance rate. It’s soft and flexible, and allows you to mount it on some curved or ring circular LED profiles.

Lens profile diffuser

It’s an optical lens design of a transparent diffuser. Which narrows the 120-degree beam angle of the LED strips, to 10 degrees, 30 degrees, and 60 degrees. So it will light a smaller surface, in exchange for higher brightness there.

Diffuser types at a glance

3. Do You Need a Diffuser for Your LED Strip Light?

A diffused LED profile diffuser is simply a flat sheet of plastic that has been cut in a very specific way. The shape of the cutout allows light to pass through but also directs it in a way that creates a soft, even glow across the surface area of an object. This type of light diffuser can be used on just about anything where you want some kind of soft, even glow – such as an office desk or kitchen countertop – but they’re especially ideal for use with indoor lights and decorative lighting that needs some sort of enhancement.

When you’re looking to light a room with LED lights, it’s important to consider what kind of light you want. If you’re looking for a soft, even glow, diffused lighting is the way to go.

Diffused lighting is the ideal choice for most applications where you don’t need a bright spotlight. It’s also the best choice for evenly lighting large areas and decorating rooms without overpowering smaller spaces like bathrooms or closets.

If you’re looking for more intense light in a specific area, consider an LED panel mounted above or below the fixture. This can be useful if your fixture isn’t tall enough to reach up high enough to shine down on your work area or wall space below it.

Diffusers are the most common type of light diffuser. They create a soft, even light source that is often used in offices, retail stores, and other commercial spaces.

Diffusers can be used in any type of lighting application, including recessed and flush mount fixtures. The best way to diffuse light is to use multiple layers of diffusers.

The number of layers depends on the size and shape of your fixture, but you should always use at least two layers for optimal results.

Do you always need one? A quick rule of thumb

• Direct-view installs need a diffuser: if the profile is in your line of sight, use opal or milky to hide the LED dots and reduce glare.
• COB strips are already dot-free: a COB LED strip looks continuous on its own, so a clear or frosted cover is often enough – a milky cover only costs brightness.
• Hidden / indirect light can skip it: for cove lighting or behind a baffle where the strip is never seen directly, a clear cover keeps maximum output.
• Glare and eye strain: if you or your customers look at the lights for hours (offices, retail, kitchens), a diffuser is strongly recommended to protect the eyes.

4. Quick Guide: How to Choose the Right Diffuser

Match your application to the diffuser that gives the look you want without wasting brightness:

If brightness matters most, pick the least opaque diffuser that still hides the dots for your viewing distance. If the dot-free look matters most, go milky or opal and choose a slightly brighter bande LED monochrome to compensate for the light loss.

For a complete installation guide, see our LED aluminum profile buying guide. If you’re lighting a kitchen, our under-cabinet kitchen lighting guide covers the best strips for that job, and once you have your diffuser you can follow comment couper et connecter des bandes lumineuses LED to install it cleanly.

5. LED Diffuser FAQ

Quick answers to the questions customers ask us most about LED strip diffusers.

6.Conclusion

Everyone who uses LED aluminum profile lights should diffuse them. LED lights are very bright, and they can cause eye strain when you look directly at them. Diffusing them in some way (like this diffuser) will make them less intense, making it easier to look at the lights all day long.

The right choice usually comes down to two questions: where the light is visible from, and how much brightness you need. Visible installs want opal or milky; hidden installs can use clear; premium designs love the black finish. Whatever you pick, a quality diffuser protects the eyes, hides the dots and makes any LED strip installation look far more professional.

Browse our LED aluminum profile range to find profiles, diffusers and end caps matched to your project, or get in touch and we’ll help you spec the right parts for your order.