How Recent US Department of Energy Rules Affect Linear Fluorescent Light Bulbs

Fluorescent Tube Lights

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

Additional DOE Standards Effective July 14, 2014:

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 at 40W and 3030 lumens at 34W to PASS
  • 2-foot U-lamps require 3360 lumens at 40W and 2856 lumens at 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 at 59W to pass)

T8 8-foot HO with RDC bases

  • All PASS (except some 700/SP Series that don’t meet the 57912 lumens at 86W to pass)

T5 4-foot with miniature bi-pin bases

  • All PASS
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Dave Burtner

Dave has been active in the lighting industry since 1994. Formerly a member of the Illuminating Engineering Society of North America and certified by the National Council On Qualifications for Lighting Professionals, Dave now writes blog posts, lighting tips and provides lighting product assistance for the Topbulb website.

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