Downlights Key Product Criteria

Performance Characteristic	Current Criteria
Efficiency: The quotient of total light output (lumens) divided by total input power (Watts) expressed in lumens per watt (lm/W). This is like the gas mileage (i.e., miles per gallon) of a car.	Reported light output divided by reported input power must be ≥ 82 lumens per watt (lm/W).
Light Output: The amount of light emitted by the product. This requirement is based on the size of the opening of the fixture where the light comes through.	Minimum (initial) light output requirements are based on aperture size: 345 lumens for apertures ≤ 4.5” 575 lumens for apertures > 4.5”
Zonal Lumen Density: This requirement ensures that the light is distributed consistent with expectations for the given product type for example the efficient LED recessed downlight will deliver light in the same places as an incandescent version of the same type.	Downlights and recessed adjustable accent lights aimed at nadir must deliver a minimum of 75% of total lumens within the zone 0-60° from nadir.
Color Appearance (Correlated Color Temperature): CCT is a description of the "color" of the light source measured on the Kelvin (K) scale. Lower values (2700-3000K) mean the white light has a warmer (yellower) tone, while higher kelvin (4000K and higher) mean the white light has a cooler (bluer) tone.	The model must be capable of providing at least one of the nominal correlated color temperatures (CCTs) below: 2200 Kelvin 2500 Kelvin 2700 Kelvin 3000 Kelvin 3500 Kelvin 4000 Kelvin 5000 Kelvin
Color Quality: The Color Rendering Index (CRI) of a light source represents the degree of color shift objects undergo when illuminated by a light source as compared with the color of those same objects when illuminated by a reference source of comparable color temperature.	R_a ≥ 80 and R₉ > 0
Color Angular Uniformity: This requirement ensures consistent light color across the beam spread of the downlight)	Variation in chromaticity throughout the beam angle must be within a total linear distance of 0.006 from the weighted average point on the CIE 1976 (u’,v’) diagram.
Downlight Life: The expected useful life of the LED light source based on the estimated point at which only 70% of the initial light output remains.	The LEDs incorporated into the model must meet the following L₇₀ rated luminous flux maintenance life value, in situ: L₇₀(6k) ≥ 25,000 hours Claims in excess of the requirement must be substantiated with an ANSI/IES TM-21 Calculator luminous flux maintenance life projection report.
Dimming	Products marketed as dimmable must provide continuous dimming from 100% to at least 20% of light output and must not emit noise above 24 dBA at minimum light output setting.
Standby Power Consumption:	Products must not draw power in the off mode (i.e., when they are not producing light). Exceptions: Products with integral motion sensors, occupancy sensors or photosensors, or connected functionality (including mesh Wi-Fi extenders) may draw up to 0.5 watts in standby mode. Products with energy saving features i.e., integral motion sensors, occupancy sensors or photosensors and connected functionality (including mesh Wi-Fi extenders) may draw up to one watt in standby mode.
Warranty	Minimum warranty period of 3 years for products with replaceable drivers and minimum 5-year warranty for products with non-replaceable drivers.
Start Time	Light source must remain continuously illuminated within: One second of application of electrical power for connected products. 750 milliseconds of application of electrical power for all other products.
Power Factor: The ratio of real power that flows to the light source versus the amount of power actually consumed. A downlight with a lower power factor will draw more current than a fixture with a higher power factor for the same amount of power consumed.	Power Factor must be ≥ 0.7.
Thermal Performance: These requirements are to ensure the downlight is designed to properly manage heat around the LEDs and critical components so that the light output or color remain consistent over the predicted useful life of the product.	At thermal equilibrium, the measured LED driver case temperature must not exceed the LED driver manufacturer’s maximum recommended temperature during in situ operation. Color Maintenance: Change in chromaticity coordinates from 0-hour measurement, at any measurement point during operation, must be ≤ a total linear distance of 0.007 on the CIE 1976 u’v’ diagram. Products marketed as Type IC (insulation contact) must be approved for zero clearance insulation cover by an OSHA NRTL laboratory. Products marketed as Airtight (AT) must exhibit leakage less than 2.0 cubic feet per minute (CFM) at 75 Pascals (or 1.57 lbs/ft²) when tested in accordance with ASTM E283-04(2012) or ASTM E283/E283M-19.

Downlights Labeling & Packaging Requirements

For units of certified models not intended for retail shelf stocking, these requirements may be fulfilled by providing a supplemental performance summary that includes all of the applicable requirements below. This performance summary must be provided for certification and to any online reseller to help ensure online marketing is consistent with ENERGY STAR certification.

Product Type	Current Criteria
All Products	Packaging or performance summary, and marketing claims must represent the product consistent with its certification. Packaging or supplemental performance summary must clearly describe the nominal color designation of the lamp in units of Kelvin (e.g., 2700K, 3000K). Demonstrate the light distribution of the downlight on a cut sheet, marketing materials or packaging, or performance summary. Comply with current ENERGY STAR Brand Book, which define how the ENERGY STAR name and marks may be used. Partner is responsible for adhering to these guidelines and ensuring that its authorized representatives, such as advertising agencies, dealers, and distributors, are also in compliance. The ENERGY STAR Brand Guidelines is available. Use the ENERGY STAR name and marks only in association with certified products. Provide clear and consistent labeling of ENERGY STAR certified products. The ENERGY STAR mark must be clearly displayed on the front or primary display panel of the product packaging, in product literature (i.e., user manuals, spec sheets, etc.) and on the manufacturer’s Internet site where information about ENERGY STAR certified models is displayed.
Products Marketed as Dimmable	Packaging or performance summary must: Indicate dimming range (as applicable). Include a list of compatible dimmers and/or other controls, or web address (e.g., via QR code) to find out more specific information. Include a list of known incompatibilities with dimmers, occupancy or vacancy sensors, timing devices or other external lighting controls, or a message noting limitations and web site address to find out more specific information.

Product Type

Current Criteria

All Products

Packaging or performance summary, and marketing claims must represent the product consistent with its certification.
Packaging or supplemental performance summary must clearly describe the nominal color designation of the lamp in units of Kelvin (e.g., 2700K, 3000K).
Demonstrate the light distribution of the downlight on a cut sheet, marketing materials or packaging, or performance summary.
Comply with current ENERGY STAR Brand Book, which define how the ENERGY STAR name and marks may be used. Partner is responsible for adhering to these guidelines and ensuring that its authorized representatives, such as advertising agencies, dealers, and distributors, are also in compliance. The ENERGY STAR Brand Guidelines is available.
Use the ENERGY STAR name and marks only in association with certified products.
Provide clear and consistent labeling of ENERGY STAR certified products. The ENERGY STAR mark must be clearly displayed on the front or primary display panel of the product packaging, in product literature (i.e., user manuals, spec sheets, etc.) and on the manufacturer’s Internet site where information about ENERGY STAR certified models is displayed.

Products Marketed as Dimmable

Packaging or performance summary must:

Indicate dimming range (as applicable).
Include a list of compatible dimmers and/or other controls, or web address (e.g., via QR code) to find out more specific information.
Include a list of known incompatibilities with dimmers, occupancy or vacancy sensors, timing devices or other external lighting controls, or a message noting limitations and web site address to find out more specific information.