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The energy efficiency index (EEI) of the lamp is calculated as follows and rounded to two decimal places:
where:
Pcor is the rated power measured at nominal input voltage and corrected where appropriate in accordance with Table 1. The correction factors are cumulative where appropriate.
Correction factors
Pref is the reference power obtained from the useful luminous flux of the lamp (Φuse) by the following formula:
For models with Φuse < 1 300 lumen:
For models with Φuse ≥ 1 300 lumen:
Φuse is defined as follows:
directional lamps with a beam angle ≥ 90° other than filament lamps and carrying a warning on their packaging in accordance with point 3.1.2(j) of this Annex: rated luminous flux in a 120° cone (Φ120°)
other directional lamps: rated luminous flux in a 90° cone (Φ90°).
The maximum EEI of directional lamps is indicated in Table 2.
Application date | Maximum energy efficiency index (EEI) | |||
---|---|---|---|---|
Mains-voltage filament lamps | Other filament lamps | High-intensity discharge lamps | Other lamps | |
Stage 1 | If Φuse > 450 lm: 1,75 | If Φuse ≤ 450 lm: 1,20 If Φuse > 450 lm: 0,95 | 0,5 | 0,5 |
Stage 2 | 1,75 | 0,95 | 0,5 | 0,5 |
Stage 3 | 0,95 | 0,95 | 0,36 | 0,2 |
Stage 3 for mains-voltage filament lamps shall apply only if no later than 30 September 2015, evidence is produced by the Commission through a detailed market assesment and communicated to the Consultation Forum that there are mains-voltage lamps on the market that are:
compliant with the maximum EEI requirement in stage 3;
affordable in terms of not entailing excessive costs for the majority of end-users;
broadly equivalent in terms of consumer-relevant functionality parameters to mains-voltage filament lamps available on the date of entry into force of this Regulation, including in terms of luminous fluxes spanning the full range of reference luminous fluxes listed in Table 6;
compatible with equipment designed for installation between the mains and filament lamps available on the date of entry into force of this Regulation according to state-of-the-art requirements for compatibility.
As from stage 2, the no-load power of a lamp control gear intended for use between the mains and the switch for turning the lamp load on/off shall not exceed 1,0 W. As from stage 3, the limit shall be 0,50 W. For lamp control gear with output power (P) over 250 W, the no-load power limits shall be multiplied by P/250 W.
As from stage 3, the standby power of a lamp control gear shall not exceed 0,50 W.
As from stage 2, the efficiency of a halogen lamp control gear shall be at least 0,91 at 100 % load.