Difference between T12 vs T8 vs T5 Tube Lights

T12 vs T8 vs T5

T12
T8
T5
Diameter
12/8"
8/8"
5/8"
Efficiency
old & inefficient
Higher efficiency
Efficient
Cost

roughly 20% more expensive than T12
2-3 times the cost of T8
Color Rendering Index (CRI)
62
85
85
Lumen's per Watt (LPW)
78
90
99
general life expectancy at 12 hrs. per day burn time
of around 36,000 hrs.
of around 36,000 hrs.
of around 36,000 hrs.

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