What is Topten?

Topten.eu is a European web portal helping buyers to find the most energy efficient products available in Europe . Links to national Topten websites from a number of
European countries are also available.

All office luminaires displayed on www.topten.eu
meet the criteria contained in these guidelines. Procurers can therefore use the website to check the availability of products currently on the market, which meet the Topten selection criteria .

Sample tender documents are provided on www.topten.eu/professional to demonstrate how the criteria can be applied in practice.
 The European Commission’s GPP website also contains valuable legal and practical guidance and procurement criteria for a range of commonly procured products and services.
Product group covered:
Product availability:
Eight categories of office luminaires are covered including: ceilingmounted-, recessed-, suspended-, floor-standing-, desk and wallmounted luminaires, spots and downlights.
All products listed on www.topten.eu
meet the criteria listed below.
Potential energy 1 and cost 1 savings:
The luminaire efficiency factor (lm/W) is the ratio of the luminous flux of the luminaire (lumens) to the power (watts). It is influenced by the luminous efficacy of the light source, the efficiency of the ballast, and the light output ratio of the luminaire. The table below shows the difference between the luminaire efficiency factors of the best Topten models and comparable fluorescent lights, and the consequent cost savings per 100 units.
Category
Ceiling mounted
Recessed
Suspended
Floor-Standing
Wall-mounted
Spots
Downlights
Best Topten model (lm/W)
84
81
98
108
97
74
105
Comparable fluorescent lamp (lm/W)
37
30
39
33
39
23
23
Cost savings
(100 units) over 15 years
€33,200
€29,800
€20,500
€51,900
€27,300
€14,500
€2600
1
These represent rough figures comparing the best product currently available, with an inefficient model
– see www.topten.eu
for more details.
2 Based on an electricity price of €0.15/kWh
1

The following criteria can be inserted directly into tendering documents. The Topten specifications are updated continuously. The newest versions are always available at www.topten.eu
.
Subject matter: Purchase of Office Luminaires
Technical specifications:
Ballast

Only electronic ballasts (luminaires with magnetic ballasts are not accepted)
Efficiency
Maximal energy efficiency index PGN 3 :

Ceiling-mounted, Floor-standing and Suspended luminaires:

Wall-mounted luminaires:

Recessed luminaires, Downlights:

Spots:

Desk luminaires:
PGNmax = 20 4
PGNmax = 22
PGNmax = 23
PGNmax = 25
PGNmax = 26
Power in standby mode


Manual control (on/off), non-dimmable: max. 0.0 watts
Dimmable ballasts: max. 0.5 watts (stricter than Minergie, corresponds to The Blue Angel)

Luminaires with presence/daylight control: max. 0.5 watts
Additional criteria for LED luminaires


Colour Rendering Index (CRI): Min. 80
Power factor: up to 25 watts min. 0.5, above 25 watts min. 0.9

Lamp life (70% of initial light output): min. 20'000 hours
Glare

CIE Unified Glare Rating UGR in standard room according to the German Lighting
Technology Association (LiTG): Max. 25
Test laboratory

The test laboratory must be accredited by the responsible public authority
Verification: Bidders must supply a declaration regarding their product’s compliance with the above requirements, supported by technical data and results from tests carried out in accordance with EN
13032 or equivalent, or a relevant third-party certification/Type I eco-label attesting to compliance.
Where compliance with these criteria is dependent upon defined usage patterns or other factors
3 Energy efficiency index: PGN (P, ΦL) = P / (0.01029 * (0.88 * √ (ΦL) + 0.049 * ΦL)) with ΦL luminous flux of the luminaire (lm) and P power (W).
Based on the “Blue Angel” criteria; lower PGN value = better energy efficiency.
4 Stricter than the requirements of „Blue Angel“
2

these must be clearly identified in the declaration.
Notes on implementation

To maximise savings and minimise environmental impact, contracting authorities should assess whole-life cost when purchasing lighting. This should take account of the usage pattern expected, average lamp life and disposal costs.

Public authorities could also consider using performance (functional) rather than conformancebased specifications e.g. tendering for “energy efficient lighting solutions” so that suppliers have the opportunity to propose the best value lighting systems available on the market and also have the opportunity to offer more innovative solutions. Public authorities who wish to develop tailored criteria for these situations are invited to contact the Procura+ team.
Advice and support
If you would like further assistance in using the information presented here in your own procurement actions or more information on Topten Pro please contact the Procura+ team at: procurement@iclei.org
+49 761 368 9248
An expression of interest form is also available on www.topten.eu/pro for public authorities who would like support to apply these criteria in an upcoming procurement process.
What is Procura+?
Procura+ is an initiative designed to help support public authorities in implementing Sustainable Procurement. The campaign is run by ICLEI
– Local Governments for Sustainability, the Topten partner for public authorities. www.procuraplus.org
3