# The Ecodesign for Energy-Related Products and Energy Information (Lighting Products) Regulations 2021, Schedule 3: Ecodesign requirements for light sources and separate control gears


Light sources
1 (1) The declared power consumption of a light source Pon must not exceed the maximum allowed power Ponmax (in W), defined as a function of the declared useful luminous flux Φuse (in lm) and the declared colour rendering index CRI (-) as follows—
Ponmax = C × (L + Φuse/(F × η)) × R;
where—
(a) the values for threshold efficacy (η in lm/W) and end loss factor (L in W) are as specified in Table 2, according to the light source type;
(b) basic values for correction factor (C) depending on light source type, and additions to C for special light source features are specified in Table 3;
(c) efficacy factor (F) is—
(i) 1.00 for non-directional light sources (NDLS, using total flux);
(ii) 0.85 for directional light sources (DLS, using flux in a cone);
(d) CRI factor (R) is—
(i) 0.65 for CRI ≤ 25;
(ii) (CRI+80)/160 for CRI > 25,
rounded to two decimals.
Table 2
Threshold efficacy (η) and end loss factor (L)
Light source description
η
L
(lm/W)
(W)
LFL T5-HE
98.8
1.9
LFL T5-HO, 4,000 ≤ Φ ≤ 5,000 lm
83.0
1.9
LFL T5-HO, other lm output
79.0
1.9
FL T5 circular
79.0
1.9
FL T8 (including FL T8 U-shaped)
89.7
4.5
From 1st September 2023, for FL T8 of 2-, 4- and 5-foot
120.0
1.5
Magnetic induction light source, any length or flux
70.2
2.3
CFLni
70.2
2.3
FL T9 circular
71.5
6.2
HPS single-ended
88.0
50.0
HPS double-ended
78.0
47.7
MH ≤ 405 W single-ended
84.5
7.7
MH > 405 W single-ended
79.3
12.3
MH ceramic double-ended
84.5
7.7
MH quartz double-ended
79.3
12.3
OLED
65.0
1.5
Before 1 September 2023: HL G9, G4 and GY6.35
19.5
7.7
HL R7s ≤ 2 700 lm
26.0
13.0
Connected light sources (CLS) not mentioned above
120.0
2.0
Other light sources not mentioned above
120.0
1.5
Table 3
Correction factor C depending on light source characteristics
Light source type
Basic C value
Non-directional (NDLS) not operating on mains (NMLS)
1.00
Non-directional (NDLS) operating on mains (MLS)
1.08
Directional (DLS) not operating on mains (NMLS)
1.15
Directional (DLS) operating on mains (MLS)
1.23
Special light source feature
Addition on C
FL or HID with CCT > 5,000K
+0.10
FL with CRI > 90
+0.10
HID with second envelope
+0.10
MH NDLS > 405 W with non-clear envelope
+0.10
DLS with anti-glare shield
+0.20
Colour-tuneable light source (CTLS)
+0.10
High luminance light source (HLLS)
+ 0.0058 · Luminance-HLLS – 0.0167
(2) For the purposes of this paragraph—
(a) where applicable, additions on correction factor C are cumulative;
(b) the addition for HLLS must not be combined with the basic C-value for DLS (basic C-value for NDLS must be used for HLLS);
(c) light sources which allow the end-user to adapt the spectrum and/or the beam angle of the emitted light, resulting in changes to the values for useful luminous flux, colour rendering index (CRI) and/or correlated colour temperature (CCT), and/or changing the directional/non-directional status of the light source, must be evaluated using the reference control settings;
(d) the standby power Psb of a light source must not exceed 0.5 W;
(e) the networked standby power Pnet of a connected light source must not exceed 0.5 W;
(f) the allowable values for Psb and Pnet must not be added together.
(3) This paragraph is subject to the exemptions in paragraph 3(3) of Schedule 4.
Separate control gears
2 (1) The minimum energy efficiency requirements of a separate control gear operating at full-load are the values set out in Table 4.
Table 4
Minimum energy efficiency for separate control gear at full-load
Declared output power of the control gear (Pcg) or declared power of the light source (Pls) in W, as applicable
Minimum energy efficiency
Control gear for HL light sources
all wattages Pcg
0.91
Control gear for FL light sources
Pls ≤ 5
5 < Pls ≤ 100
100 < Pls
0.71
Pls/(2 × √(Pls/36) + 38/36 × Pls+1)
0.91
Control gear for HID light sources
Pls ≤ 30
30 < Pls ≤ 75
75 < Pls ≤ 105
105 < Pls ≤ 405
405 < Pls
0.78
0.85
0.87
0.90
0.92
Control gear for LED or OLED light sources
all wattages Pcg
Pcg 0.81/(1.09 × Pcg 0.81 + 2.10 )
(2) For the purposes of this paragraph, the requirements of Table 4 apply to multi-wattage separate control gears in respect of the maximum declared power on which they can operate.
(3) Where a manufacturer or importer has declared in the technical documentation that a separate control gear has been designed for no-load mode, the no-load power Pno of the control gear must not exceed 0.5W.
(4) The standby power Psb of a separate control gear must not exceed 0.5 W.
(5) For a connected separate control gear—
(a) the networked standby power Pnet must not exceed 0.5 W;
(b) the allowable values for Psb and Pnet must not be added together.
(6) This paragraph is subject to the exemptions in paragraph 3(3) of Schedule 4.

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Source: https://www.legislation.gov.uk/ukdsi/2021/9780348225488/schedule/3 (the official version)
Page: https://openlegislation.uk/draft-ecodesign-for-energy-related-products-and-energy-information-lighting-products-regulations-2021/schedule-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.