19.06.2026

The truth about the energy label

The first time you see it, you don’t understand what it is.
It looks like a sphere.
Some call it a spaceship.
Others call it a “bomb”.
In reality, it’s one of the most important tools in the lighting world: the integrating sphere.

The point is not how it looks. It’s what it does

In the LED world, everything revolves around numbers:
- lumens
- CRI
- color temperature
But where do these values come from?
They are not opinions. They are not claims. They are measurements.
And the integrating sphere is the tool that makes them possible.

How does it actually work?

The principle is simple.
Inside, the sphere is completely white.
This is not an aesthetic detail.
It is designed to reflect light uniformly across the entire internal surface.
The light source is placed inside.
Light bounces everywhere.
And sensors, positioned in precise points, collect the data.
This is the key point.
Other instruments measure a single direction.
The integrating sphere measures the total light output.
No matter where the light is emitted, it captures it completely.
This is why the data is reliable.

What does it actually measure?

With a single test, you can obtain:
- luminous flux (lumens)
- color temperature
- HCF and R9
- lux
and many other parameters.
In practice: everything you need to understand how much and how well a light performs.

The direct link with the energy label

These data don’t stay in the lab.
They are used to compile technical reports.
And from those reports comes the energy label.

The report: it’s not a page. It’s a system

When you receive a report, you’re not looking at a single sheet.
You’re looking at a complete technical document.
We’re talking about:
- dozens of parameters
- multiple pages of analysis
- data that defines the product
This is real measurement.

The difference between declaring and knowing

Those who work without measurements: they claim.
Those who work with proper tools: they know.
And that’s a huge difference.

Watch the video

Because the difference is not in the light you see. It’s in the data that proves it → book a call with us