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Current DOE Standards:
| Lamp Type |
Watts |
Min. CRI |
Min. Lumens/Watt |
| 4-foot medium bi-pin |
>35W
<35W |
69
45 |
75.0
75.0 |
| 2-foot U-shaped |
>35W
<35W |
69
45 |
68.0
64.0 |
| 8-foot slimline |
>65W
<65W |
69
45 |
80.0
80.0 |
| 8-foot high output |
>100W
<100W |
69
45 |
80.0
80.0 |
NEW Additional DOE Standards Effective July 14, 2012:
| Lamp Type |
Watts |
Color Temperature |
Min. Lumens/Watt |
| 4-foot (T8-T12) medium bi-pin |
>25W
|
<4500K
>4500K and <7000K |
89.0
88.0 |
| 2-foot (T8-T12) U-shaped |
>25W |
<4500K
>4500K and <7000K |
84.0
81.0 |
| 8-foot (T8-T12) slimline |
>52W |
<4500K
>4500K and <7000K |
97.0
93.0 |
| 8-foot (T8-T12) high output |
|
<4500K
>4500K and <7000K |
92.0
88.0 |
| 4-foot (T5) miniature bi-pin |
>26W |
<4500K
>4500K and <7000K |
86.0
81.0 |
| 4-foot (T5HO) miniature bi-pin |
>49W |
<4500K
>4500K and <7000K |
76.0
72.0 |
EXEMPTIONS to the above standards:
Fluorescent: plant grow lights, cold temperature applications lamps, colored lamps, impact resistant lamps, reflectorized or aperture lamps, reprographic equipment lamps, UV lamps, lamps with a CRI of 87 or higher.
IMPACT ON EXISTING LAMPS
T12 4-foot and 2-foot U-shaped lamps with medium bi-pin bases and <7000K
- Majority of F40 and F34T12 lamps and all FB40 and FB34T12 U-lamps FAIL
- 4-foot requires 3560 lumens @ 40W and 3030 lumens @ 34W to PASS
- 2-foot U-lamps require 3360 lumens @ 40W and 2856 lumens @ 34W to PASS
T12 8-foot Slimline with single pin bases and <7000K
- All 75W F96T12 lamps FAIL
- All 60W F96T12/ES lamps (except 800/SPX Series and some 700/SP Series) FAIL
T12 8-foot 800mA HO and <7000K
- All 110W F96T12HO lamps FAIL
- All 95W F96t12/ES/HO (except for enhanced 800 Series) FAIL
T8 4-foot and 2-foot U-shaped lamps with medium bi-pin bases
- All 4-foot T8 basic 700/SP Series lamps at 2800 lumens FAIL
- All other 4-foot T8 PASS
- All 2-foot 800/SPX Series U-shaped lamps (and some 700/SP Series) PASS
T8 8-foot Slimline with single pin bases
- All PASS (except some 700/SP Series that don't meet the 5723 lumens @ 59W to pass)
T8 8-foot HO with RDC bases
- All PASS (except some 700/SP Series that don't meet the 57912 lumens @ 86W to pass)
T5 4-foot with miniature bi-pin bases
Linear Fluorescent lighting
energy efficiency is dependent on the lamp/ballast system.
Typical configuration options for office / classroom applications:
- T12 system: 40W bulb + magnetic ballast = lowest efficiency (Federal regulations require phase out of T12 system by 2012)
- Standard T8 system: 32W bulb + electronic ballast = higher
efficiency
- Advanced T8 system: 30W, 28W or 25W bulbs + compatible electronic ballast = highest efficiency
Retrofit Energy Savings Estimates:
- From T12 system to Standard T8 system - 25% energy savings
- From T12 system to Advanced T8 system - 43% energy savings
- From Standard T8 system to Advanced T8 system - 12% energy
savings
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