Methodology

Topten.eu presents the most energy efficient luminaires for home use. The listed luminaires are measured in a certified laboratory or laboratory results are provided by manufacturers.

Technical Criteria

The criteria are:

• Only luminaires with LED light sources are accepted
• Luminous flux: min. 200 Lumen
• Energy efficiency:
  • Luminaires with fixed lightsource (or exchangable by experts)
    • Luminous efficacy (Lm / Watt)
      • up to 750 Lumen: min. 80 Lm / Watt
      • from 750 Lumen: min. 95 Lm / Watt
• • Luminaires with exchangable (by user) light source
    • Luminaire efficiency: >70%
• Color rendering index CRI: min. 80
• Standby Power:
  • max. 0.0 W
  • max. 0.5 W with integrated dimmer/sensor OR communication device
  • max. 1.0 W with integrated dimmer/sensor AND communication device
  • max. 0.5 W per dimmer (e.g. with 2 dimmers and a communication device: 1.5W)

Alternatively (or additionally), a valid Minergie luminaire certificate can be submitted.

In the case of similar luminaires (product series), the Topten award can be transferred to other variants (e.g. from the 1 spotlight to the 2, 3 and 4 spotlights variants).

In the case of an LED luminaire with variable color temperatures, the one with the lowest energy efficiency (usually warmwhite) is specified; the energy efficiency values also refer to this color temperature.

For luminaires without a permanently installed light source, a suitable, efficient light source from the relevant store is selected for the laboratory measurement (referred to as reference lamp for test).

Order of presentation

Models are ranked according to their luminaire efficacy in lumens per watt (lm/W), The higher the value the better. The order of presentation can be changed by clicking the tables’ headings.

Glossary

Brand, Model

Brand with link to manufacturer website, name of model

Type of luminaires

Only luminaires with LED light sources are accepted

Type of lamp

Type of light source: LED = light-emitting diode. Usually permanently installed in the luminaire, no lamp replacement necessary. If replaceable, the base is indicated, e.g. E27 or E14.

Luminous efficacy

Ratio of the measured luminous flux of the luminaire (lumen) to the power (watts). The higher the luminaire efficiency (lumen per watt, lm/W), the better.

Luminaire efficiency

Energy efficiency of the luminaire, expressed in % (lumen of the reference lamp measured alone divided by the lumen of the luminaire with the reference lamp)

Reference lamp for test

For luminaires without a permanently installed light source, the appropriate, efficient light source has been selected. The exact article name is listed here.

Power

Measured value for power in watts (W)

Energy consumption

Electricity cost in 15 years

Power

Measured power consumption of the luminaire in watts (W). Measurement at full load (100%) for dimmable luminaires.

Luminous Flux

Amount of light emitted by the luminaire in lumens (lm)

Color temperatur

• warm white: 2700 - 3500 K (as reference: incandescent lamp 2700 K, halogen lamp 3000 K)
• neutral white: 3500 - 5000 K
• cold white: 5000 - 10000 K (daylight 6500 K)

Color rendering index Ra

• Daylight, incandescent lamps, halogen lamps: Ra = 100
• Energy-saving lamps: Ra = 80
• Fluorescent tubes: Ra = 80 to 90
• LEDs: good products Ra = 80 to 100, poor products Ra = 50 to 70

Dimmable / integrated dimmer

Standby (W)

Power consumption in Watts when the light is off or in standby mode.

Standby (%)

Power factor

METAS

The luminaires awarded the METAS logo were tested at the Swiss Federal Institute of Metrology (METAS).

Infoplus

Standards and labels

• Commission Delegated Regulation (EU) 2019/2015 of 11 March 2019 supplementing Regulation (EU) 2017/1369 of the European Parliament and of the Council with regard to energy labelling of light sources and repealing Commission Delegated Regulation (EU) No 874/2012 (Text with EEA relevance.)
• Commission Regulation (EU) 2019/2020 of 1 October 2019 laying down ecodesign requirements for light sources and separate control gear pursuant to Directive 2009/125/EC of the European Parliament and of the Council and repealing Commission Regulations (EC) No 244/2009, (EC) No 245/2009 and (EU) No 1194/2012 (Text with EEA relevance.)
• MINERGIE®-Modul Leuchten - Certification of luminaires with high energy efficiency, limited energy consumption in standby and limited glare. Complete list of Minergie-certified luminaires under www.toplicht.ch.
• Energy Star luminaires specification version 2.1 (2017)

Organisations

• The European council for an energy efficient economy eceee provides a status overview on all products in the Ecodesign & Energy Labelling process.
• Coolproducts informs about the EU ecodesign process. It is a coalition of NGOs' campaign for a stronger, fast Ecodesign Directive to save the climate and money.
• ECOS (Ecostandard) is an international NGO with a network of members and experts advocating for environmentally friendly technical standards, policies and laws.
• SLG Schweizerische Licht Gesellschaft, Bern

03/2024 Gross