Default Wattages
for Existing Lighting Equipment

Suggested values for common existing lighting equipment. If verifiable project-specific values are available, use them instead of values from these tables and provide documentation/evidence of wattage.

T12 Fluorescent Fixtures

DescriptionNumber of LampsFixture Watts –
Energy Saving Magnetic Ballast
Fixture Watts –
Electronic Ballast
F40T12 4′ 34W14231
F40T12 4′ 34W26760
F40T12 4′ 34W310491
F40T12 4′ 34W4144119
F40T12 4′ 40W14138
F40T12 4′ 40W28771
F40T12 4′ 40W3141107
F40T12 4′ 40W4172134
F48T12 HO 4′ 60W4263
F40T12 U-bend 34W14231
F40T12 U-bend 34W26760
F40T12 U-bend 40W14138
F40T12 U-bend 40W28771
F96T12 8′ 60W17467
F96T12 8′ 60W2113105
F96T12 8′ 75W19484
F96T12 8′ 75W2145133
F96T12 HO 8′ 95W2203170
F96T12 HO 8′ 110W2203170
F96T12 VHO 8′ 185W2698

Mercury Vapor Fixtures

(magnetic ballast)

Description Fixture Watts
75W 95
100W 122
175W 205
250W 285
400W 454

T5 Fluorescent Fixtures

(electronic balast)

DescriptionNumber of LampsFixture Watts
F28T5 4′ 28W132
F28T5 4′ 28W264
F54T5HO 4′ 54W162
F54T5HO 4′ 54W2120
F54T5HO 4′ 54W3181
F54T5HO 4′ 54W4242
F54T5HO 4′ 54W6363

Standard T8 Fluorescent Fixtures

DescriptionNumber of LampsFixture Watts –
Energy Saving Magnetic Ballast
Fixture Watts –
Electronic Ballast
F32T8 4′ 25W126
F32T8 4′ 25W243
F32T8 4′ 25W363
F32T8 4′ 25W485
F32T8 4′ 28W125
F32T8 4′ 28W248
F32T8 4′ 28W372
F32T8 4′ 28W497
F32T8 4′ 30W14031
F32T8 4′ 30W28254
F32T8 4′ 30W377
F32T8 4′ 30W4104
F32T8 4′ 32W13532
F32T8 4′ 32W26858
F32T8 4′ 32W310085
F32T8 4′ 32W4131110
F32T8 U-bend 32W13731
F32T8 U-bend 32W27458
F32T8 4’ 32W (high ballast factor)4147
F32T8 4’ 32W (high ballast factor)6220
F32T8 4’ 32W (high ballast factor)8294

Pulse Start Metal Halide Fixtures

(energy saving magnetic ballast)

DescriptionFixture Watts
70W85
100W118
125W141
150W173
175W189
200W218
250W272
320W342
350W375
400W425

Metal Halide Fixtures

(probe start, magnetic ballast)

Description Fixture Watts
70W 93
100W 125
150W 173
175W 208
250W 290
400W 455
1000W 1080

High Pressure Sodium Fixtures

(magnetic ballast)

Description Fixture Watts
70W 86
100W 130
150W 188
200W 240
250W 290
400W 457
600W 665
750W 840
1000W 1100

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