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ANNEX II U.K.Ecodesign requirements

2. Functional requirements U.K.

From 1 September 2021, the functional requirements specified in Table 4 shall apply for light sources:

Table 4

Functional requirements for light sources

Colour rendering	CRI ≥ 80 (except for HID with Φuse > 4 klm and for light sources intended for use in outdoor applications, industrial applications or other applications where lighting standards allow a CRI< 80, when a clear indication to this effect is shown on the light source packaging and in all relevant printed and electronic documentation)
Displacement factor (DF, cos φ1) at power input Pon for LED and OLED MLS	No limit at Pon ≤ 5 W, DF ≥ 0,5 at 5 W < Pon ≤ 10 W, DF ≥ 0,7 at 10 W < Pon ≤ 25 W DF ≥ 0,9 at 25 W < Pon
Lumen maintenance factor (for LED and OLED)	The lumen maintenance factor XLMF% after endurance testing according to Annex V shall be at least XLMF,MIN % calculated as follows: where L70 is the declared L70B50 lifetime (in hours) If the calculated value for XLMF,MIN exceeds 96,0 %, an XLMF,MIN value of 96,0 % shall be used
Survival factor (for LED and OLED)	Light sources should be operational as specified in row ‘Survival factor (for LED and OLED)’ of Annex IV, Table 6, following the endurance testing given in Annex V.
Colour consistency for LED and OLED light sources	Variation of chromaticity coordinates within a six-step MacAdam ellipse or less.
Flicker for LED and OLED MLS	Pst LM ≤ 1,0 at full-load
Stroboscopic effect for LED and OLED MLS	SVM ≤ 0,4 at full-load (except for HID with Φuse > 4 klm and for light sources intended for use in outdoor applications, industrial applications or other applications where lighting standards allow a CRI< 80)