Greenhouse and Energy Minimum Standards (LED Lamps) Determination 2025
13Ecodesign requirements—energy efficiency
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13 Ecodesign requirements—energy efficiency
Minimum required luminous efficacy of an LED lamp
(1) The luminous efficacy (ηlamp) of an LED lamp must not be less than the minimum required luminous efficacy (ηlamp.min), measured in lm/W.
(2) For the purposes of subsection (1), for a lamp requiring reference control settings, luminous efficacy of an LED lamp is the luminous efficacy tested in the reference control settings (in accordance with section 24) and is calculated using the useful luminous flux (Φuse)Image unavailable in extracted textand the on-mode power (Pon), as follows:
A formula to work out the luminous efficacy of a lamp requiring testing in specified reference control settings. This is calculated by dividing the useful luminous flux by the on-mode power.
(3) For the purposes of subsection (1), the minimum required luminous efficacy is a function of the useful luminous flux (Φuse) (in lm) and the colour rendering index (CRI), as follows:
A formula to work out the minimum required luminous efficacy for a particular LED lamp. The formula is a function of useful luminous flux and colour rendering index with adjustment factors for connected LED lamps, types of directional LED lamps, colour tuneable lamps, directional lamps with an anti-glare shield, high luminance lamps, and the cone of measurement used.
where:
η, the threshold luminous efficacy, is 120 lm/W.
L, the end loss factor, is 2.0 W for a CLL and 1.5 W otherwise.
C, the correction factor, is defined in subsection (4).
F, the luminous efficacy factor, is:
(a) for non-directional LED lamps (NDLL) using total flux—1.00; and
(b) for directional LED lamps (DLL):
(i) using flux in a cone with an angle of 90° or 120°—0.85; or
(ii) using measurement of forward-facing lumens (corresponding to a cone with an angle of 180°)—as follows:
| Beam angle (BA) | F value |
|---|---|
| 0 < BA < 90 | 0.95 |
| 90 ≤ BA < 120 | 1.00 |
R, the CRI factor, is (CRI+80)/160 for CRI ≥ 70, with both R and CRI rounded to two decimal places.
(4) For the purposes of subsection (3), the correction factor for an LED lamp is:
(a) for an LED lamp other than a directional LED lamp (DLL)—the sum of the following values set out in the table:
(i) the basic C value for the relevant type of lamp;
(ii) each applicable additional C value; and