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Federal Register / Vol. 86, No. 203 / Monday, October 25, 2021 / Rules and Regulations Excludes 150 W fixtures initially exempted by EISA 2007, which are fixtures rated only for 150 watt lamps; rated for use in wet locations, as specified by the NFPA 702002, section 410.4A; and containing a ballast that is rated to operate at ambient air temperatures above 50 C, as specified by UL 10292007.

2. Baseline Ballasts For each representative equipment class, DOE selected baseline ballasts to serve as reference points against which DOE measured changes from potential amended energy conservation standards. Typically, the baseline ballast is the most common, least
efficient ballast that meets existing energy conservation standards.
In the August 2020 NOPD, DOE
selected as baselines the least efficient ballasts meeting standards that have common attributes for ballasts in each equipment class such as circuit type, input voltage and ballast type. DOE
used the efficiency values of ballasts contained in MHLFs certified in DOEs compliance certification database to identify baseline ballasts for all equipment classes except the >1,000 W
and 2,000 W equipment class. Because fixtures in this equipment class are not
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currently subject to standards, and therefore do not have DOE certification data, DOE determined baseline ballast efficiency values by using catalog data.
In the August 2020 NOPD, DOE
directly analyzed the baseline ballasts shown in Table IV.5 of this document.
85 FR 47472, 47487. DOE did not receive any comments on the baseline ballasts identified in the August 2020
NOPD and therefore continues to analyze the same baseline ballasts in this final determination. See chapter 5
of this final determination TSD for further details.

TABLE IV.5BASELINE BALLASTS
Representative equipment class
Wattage
50 W and 100 W
>100 W and <150 W
150 W and 250 W
>250 W and 500 W
>500 W and 1,000 W
>1,000 W and 2,000 W

Ballast type
70
150
250
400
1,000
1,500

Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic
Circuit type

Starting method
HXHPF
HXHPF
CWA
CWA
CWA
CWA

Pulse Pulse Pulse Pulse Pulse Probe
Input voltage

Quad Quad Quad Quad Quad Quad

System input power 89.5
182.0
281.5
443.0
1,068.4
1,625.0

Ballast efficiency 0.782
0.824
0.888
0.903
0.936
0.923

Includes 150 W fixtures initially exempted by EISA 2007, which are fixtures rated only for 150 watt lamps; rated for use in wet locations, as specified by the NFPA
702002, section 410.4A; and containing a ballast that is rated to operate at ambient air temperatures above 50 C, as specified by UL 10292007.
Excludes 150 W fixtures initially exempted by EISA 2007, which are fixtures rated only for 150 watt lamps; rated for use in wet locations, as specified by the NFPA 702002, section 410.4A; and containing a ballast that is rated to operate at ambient air temperatures above 50 C, as specified by UL 10292007.

3. More-Efficient Ballasts In the August 2020 NOPD, DOE
selected more-efficient ballasts as replacements for each of the baseline ballasts by considering commercially available ballasts. DOE selected moreefficient ballasts with similar attributes as the baseline ballast when possible e.g., circuit type, input voltage. As with the baseline ballasts, DOE used the ballast efficiency values from the compliance certification database to identify more efficient ballasts for all equipment classes except for the >1,000
W and 2,000 W equipment class which does not have certification data available. For this equipment class, DOE
determined ballast efficiency values by first gathering and analyzing catalog
data. DOE then tested the ballasts to verify the ballast efficiency reported by the manufacturer. For instances where the catalog data did not align with the tested data, DOE selected more-efficient ballasts based on the tested ballast efficiency. 85 FR 47472, 47487.
DOE did not receive any comments on the more-efficient ballasts selected in the August 2020 NOPD and therefore continues to analyze the same moreefficient ballasts in this final determination. In the August 2020
NOPD and chapter 5 of the NOPD TSD
there were typos in some characteristics specified for the more-efficient ballasts.
The system input power for the 70 W EL
2 representative unit stated as 0.814 in the August 2020 NOPD and TSD and should have been specified as 81.4. The
system input power for the 250 W EL 1
representative unit stated as 276.5 in the August 2020 NOPD and TSD should have been 278.7. The system input power for the 1,500 W EL 1
representative unit stated as 1,000 W, Pulse start, with a system input power of 1063.8 and ballast efficiency of 0.94
in the August 2020 NOPD should have been a 1,500 W, Probe start with system input of 1,600.9 and ballast efficiency of 0.937. These typos have been corrected in this document and chapter 5 of this final determination TSD. The characteristics of the more-efficient representative units are summarized in Tables IV.6 through IV.11 of this document. See chapter 5 of this final determination TSD for further details.

TABLE IV.670 W REPRESENTATIVE UNITS
Equipment class 50 W and 100 W

EL
EL1
EL2
EL3

Technology
Rated wattage
Starting method
Input voltage
70
70
70

Pulse
Pulse
Pulse

Tri
Quad
Quad

More Efficient Magnetic Standard Electronic
Electronic Max-tech

System input power 88.3
81.4
77.7

Ballast efficiency 0.793
0.860
0.901

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TABLE IV.7150 W REPRESENTATIVE UNITS
Equipment class >100 W and <150 W

EL
EL1
EL2
EL3

Technology
Rated wattage
Starting method
Input voltage
150
150
150

Pulse
Pulse
Pulse

Quad
Quad
Quad

More Efficient Magnetic Standard Electronic
Electronic Max-tech

System input power 178.6
166.7
162.2

Ballast efficiency 0.84
0.9
0.925

Includes 150 W fixtures initially exempted by EISA 2007, which are fixtures rated only for 150 watt lamps; rated for use in wet locations, as specified by the NFPA
702002, section 410.4A; and containing a ballast that is rated to operate at ambient air temperatures above 50 C, as specified by UL 10292007.

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