Ecodesign of Light Sources and Separate Control Gears
Regulatory Framework for the Ecodesign of Light Sources and Separate Control Gears
Regulation 2019/2020 stems from Directive 2009/125/EU establishing a framework for the setting of ecodesign requirements for energy-related products. ESPR – Ecodesign for Sustainable Products Regulation replaces EU Directive 2009/125/EC.
It encompasses the eco-design of two types of devices:
- light sources; and
- separate control gears like limiters or transformers.
The EU Definition of Light Sources
The European Commission’s Definition of Separate Control Gears
Step 1: Provide Clear Disassembly Requirements
Step 2: Determine Maximal Authorized Power
The second requirement is to ensure the product does not exceed a maximum authorized power. Producers can find the maximal power of the device by determining these factors:
I. Corrective Factor Value (C)
It is a fixed value that only depends on the type of light source. Unique physical characteristics can lead to differences in the C value.
In the case of the T5-HE LFL LED, it is a non-directed light source that does not require a control system, and it connects to a power supply without intermediate control gear. The associated C value is 1.00.
II. Loss Factor at the Ends (L) and Energy Threshold (η)
Like the Corrective Factor Value, (EU) 2019/2020 provides values for end loss factors and threshold efficacies across different types of light sources. For example, the η and L values applicable to our T5-HE LFL LED are:
III. Declared Useful Luminous Flux (φ)
The declared luminous flux is more complex to find, and relates directly to the construction of the light source and how its flux is directed. This value states a range in the quantity of emitted light intensity according to a given volume, and an appropriate laboratory measurement is necessary to determine it.
IV. Efficacy Factor (F)
The efficacy factor of a light source is a simple coefficient that is assigned based on the directionality of the light source:
- F = 1.00 for non-directional light sources (NDLS, using total luminous flux)
- F = 0.85 for directional light sources (DLS, using the flux in a cone whose vertex is located at the light source)
V. Color Rendering Index (CRI)
The color rendering index represents the ability of a light source to realistically render the colors of the visible spectrum when it reflects on an object. Some precise calculations are necessary to have the exact figure, although an approximation according to the type of light is also possible:
Successfully calculating the CRI allows us to find R, the CRI factor. Now we have all the factors we need to calculate the maximum authorized power of our device!
We should compare our theoretical maximum authorized power with the actual voltage and current values of our light source or control device, using a voltmeter and ammeter to calculate the actual power consumed.
If the actual power is lower than Maximal Authorized Power, the device complies with regulations.
Step 3: Ecodesign of light sources: theMeet the Minimum Energy Efficiency Requirement
Step 4: Demonstrate Mandatory Functional Requirements for the Ecodesign of Light Sources
Step 5: Ensure Proper Communication of Ecodesign Information
First, let’s present EPREL. This European Product Registry and Energy Labelling (EPREL) is the EU organization responsible for ecodesign monitoring. Its role is to ensure a European market that respects ecological preservation.
Since September 1st, 2021, EPREL requires manufacturers to disclose detailed product information as follows:
Do you have any questions about the EU Regulation 2019/2020 on the ecodesign of light sources and separate control gears? Contact our Enviropass eco-design expert!