Zonal lumen density The spatial distribution of light into Important for consumers; avoids Energy Star To be considered only for inclusion particular angular zones. products having too much light Product in the standard. distribution in zones other than Specification Omni-Directional: Products shall where designated by their status. for Lamps V1. have an even distribution of I.e. directional lamps to have luminous intensity within the 0° to majority of light in forward direction; 135° zone (symmetrical about the Ecodesign while typical non-directional lamps to vertical axis). Luminous intensity at have a more consistent light spread any angle within this zone shall not through most zones. differ from the mean luminous intensity for the entire 0° to 135° zone by more than 20%. At least 5% of total flux must be emitted in the 135° -180 ° zone. Distribution shall be vertically symmetric in three vertical planes, 0°, 45°, 90°. Centre beam The measured intensity of light Important in accurately evaluating IEC 62612 (Self IEA 4E SSL luminous intensity output on the optical beam axis for the performance of directional ballasted LED) For MR or PAR lamps with a beam directional lamps (with beam angle lamps/products for where the angle <65°, center beam intensity (directional lamps < 65°) consumer wants directed should meet equivalent levels using only) IEC 62717 illumination. Also provides the online tool: (LED modules) equivalent intensity to the traditional lamp being replaced Colour rendering A measure of the ability of a light Colour rendering is important for IEC 62612 (Self IEA 4E SSL index (CRI) source to reveal the colours of various consumer satisfaction with a lighting ballasted LED) ≥80 objects faithfully in comparison with product. High CRI of 90+ is an ideal or natural light source (such necessary for specialised tasks where IEC 62717 as incidental sunlight). The highest colour is important (e.g. food (LED modules) CRI attainable is 100, with the scale preparation, applying makeup, and dropping to negative values for some painting). For general use in light sources. Typical LEDs have residential and office locations, a about 80+ CRI. minimum CRI of 80 is recommended.
Zonal lumen density The spatial distribution of light into particular angular zones. Important for consumers; avoids products having too much light distribution in zones other than where designated by their status. I.e. directional lamps to have majority of light in forward direction; while typical non-directional lamps to have a more consistent light spread through most zones. Energy Star Product Specification for Lamps V1. Ecodesign To be considered only for inclusion in the standard. Omni-Directional: Products shall have an even distribution of luminous intensity within the 0° to 135° zone (symmetrical about the vertical axis). Luminous intensity at any angle within this zone shall not differ from the mean luminous intensity for the entire 0° to 135° zone by more than 20%. At least 5% of total flux must be emitted in the 135° -180 ° zone. Distribution shall be vertically symmetric in three vertical planes, 0°, 45°, 90°. Centre beam luminous intensity (directional lamps only) The measured intensity of light output on the optical beam axis for directional lamps (with beam angle < 65°) Important in accurately evaluating the performance of directional lamps/products for where the consumer wants directed illumination. Also provides equivalent intensity to the traditional lamp being replaced IEC 62612 (Self ballasted LED) IEC 62717 (LED modules) IEA 4E SSL For MR or PAR lamps with a beam angle <65°, center beam intensity should meet equivalent levels using the online tool: Colour rendering index (CRI) A measure of the ability of a light source to reveal the colours of various objects faithfully in comparison with an ideal or natural light source (such as incidental sunlight). The highest CRI attainable is 100, with the scale dropping to negative values for some light sources. Typical LEDs have about 80+ CRI. Colour rendering is important for consumer satisfaction with a lighting product. High CRI of 90+ is necessary for specialised tasks where colour is important (e.g. food preparation, applying makeup, and painting). For general use in residential and office locations, a minimum CRI of 80 is recommended. IEC 62612 (Self ballasted LED) IEC 62717 (LED modules) IEA 4E SSL ≥80