ENERGY EFFICIENCY CLASSES

The energy efficiency class indicates how much luminous flux (in lumens) a light source produces per power consumption (in watts). A higher efficiency class means more light with less electricity. At ISOLED, we categorize our products according to the new EU classes A to G, where “A” stands for very efficient and “G” for comparatively less efficient. This classification provides the best guidance when you want to minimize electricity costs and achieve sustainability goals in your projects.

Current EU regulations require all LED luminaires to be reclassified based on their luminous efficacy. The scale now ranges from “A” to “G.” This means that previous classifications (e.g., “A++,” “B+”) are no longer directly transferable – each product must be reassessed. For you, this means you see realistic and comparable efficiency values for our products.

EPREL stands for “European Product Database for Energy Labelling.” It is an EU-wide database where manufacturers must provide technical and energy data for their luminaires. Using the QR code on the energy label, you can directly access the EPREL database to view, for example, luminous output, power consumption, and efficiency class. Transparency is our goal.

The new classification makes the energy consumption of LED products clearly comparable. If you have two luminaires producing, for example, 2,000 lumens each but requiring different wattages, the efficiency class immediately shows which luminaire is more efficient. This enables informed decisions – e.g., for tenders, budget planning, or sustainability objectives.

This ensures that all our products are legally compliant and provide the required labels and data. For you, this means easy planning, legal certainty, and no risk of later retrofits. All our luminaires comply with EU energy efficiency regulations and labeling requirements.

Luminous efficacy indicates how many lumens a luminaire produces per watt of electricity consumed. Higher efficacy means lower electricity costs and less heat generation. In practice, this means you need less power to achieve the same luminous flux with more efficient LED products. For example, you save energy costs over the product’s lifetime, reduce loads on fuses, and lower cooling costs when multiple luminaires are installed in a room.

No – not directly. Since the calculation method has changed, old classes (e.g., A++, A+) cannot be simply translated into the new classes (A to G). Each luminaire type has been reassessed. Therefore, it is important to refer to the new label and EPREL data rather than old comparisons.

"Think in luminous flux, not just watts: What light level do you really need?

Consider lifespan and maintenance costs: a more efficient product pays off faster.

Plan for control and regulation: dimming, timers, etc., help save energy.

Consider environment and heat dissipation: efficient LEDs lose performance if overheated. Good housings and heat sinks are important."

"Reduced operating costs (energy, cooling, maintenance)

Lower fuse and circuit requirements due to reduced loads

Higher ROI (Return on Investment) over the luminaire’s lifetime

Positive sustainability profile – for building certifications (e.g., LEED, DGNB) and public tenders"

The QR code on the energy label links to the EPREL database page for the respective product. There you can find technical data such as luminous output, power in watts, efficiency class, color rendering, brightness, lifetime, flicker data if applicable, etc. This allows you to obtain complete and reliable information before making a decision.

We rely on high-quality LED chips, efficient drivers, and good thermal design. In addition, during component selection (global sourcing), we ensure that efficiency criteria are met. Our quality assurance regularly checks efficiency along with other performance data. This ensures that even after years, a good ratio of luminous output to energy consumption is maintained.

Through our contact page, you can directly reach an inside-sales specialist who will assist with all questions about energy efficiency – e.g., project calculations, LED product selection, or tender documents. We are also available if you need product specifications (EPREL datasheet, energy label).