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T8 Vs T12 Fluorescent Bulbs - Time To Changeover To T8 Bulbs?
Is This The End of T12 Lamps and Ballasts? | USIlluminations
What are my options when replacing a T12 Fluorescent Bulb
Fluorescent Light Bulbs T8 Vs T12 | Americanwarmoms.org
The Silicon Graybeard: I Knew About 100W Bulbs, But Not Fluorescents
T8 Versus T12 Light Output | Decoratingspecial.com
Can you replace a t12 bulb with a t8?
Fluorescent T8 vs. T12 Bulbs (with Pictures) | eHow
Fluorescent T8 vs. T12 Bulbs (with Pictures) | eHow