Can F40 and F34 lamps be used with the same ballast? From experience if the lamps are T12 F40 or F34 then they are typically ok, however the new T8 slimmer 32 and 34 watt lamps will flicker when installed in an older style magnetic non-electronic ballast and will eventually burn out soon.
The main difference between T8 and T12 tubes is the tube's diameter. T12 tubes are 1.5" in diameter while T8s are just one inch. All other things—socket sizes, lengths, distance between pins—are the same. T8 LED tubes won't fall out if you try to install them in a T12 fixture—they'll fit just fine.16 May 2019
What does F40T12 mean?
(D) (i) The term “F40T12 lamp” means a nominal 40 watt tubular fluorescent lamp which is 48 inches in length and one-and-a-half inches in diameter, and conforms to ANSI standard C78.
Are F40 and T12 the same?
A T12 is 12/8ths of an inch, or 1.5" in diameter. A T5 is 5/8" in diameter. All F32 and F40 lamps are essentially 4 foot long lamps (47" if you don't count the pins). The FR71T12 is actually a 71" long x 1.5" diameter lamp that can handle from 80-120w and is typically run at 100w.
What does F40 mean on light bulb?
All F32 and F40 lamps are essentially 4 foot long lamps (47" if you don't count the pins). The FR71T12 is actually a 71" long x 1.5" diameter lamp that can handle from 80-120w and is typically run at 100w. It uses the different use of the F number.
What bulb replaces F40?
Special Feature 1.5 Inch Diameter, 48" Inch Length
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Indoor/Outdoor Usage Indoor
Wattage 40 watts
Light Color Cool white
What size is F40 bulb?
Product Description. Averages 20,000 life hours. 6500K, 88 CRI, 2180 lumens. 48" overall length x 1.59" diameter.