What does F40 mean on light bulb?

F40 is wattage, T is “tube”, 40 is diameter (12/8 “), and WW means warm white. Fluorescent Lamp Identification. 389 views.

Is F40 same as T12?

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). F40T12 – 4 foot long, 1.5″ in diameter.

What bulb replaces F40?

Replaces F40T12/CW F40T12/CW/SUPREME/ALTO F40/D841/ECO F40SPX41/ECO F40SP41 F40T12/CWSupreme/Plus/Alto….

Special Feature	1.5 Inch Diameter, 48″ Inch Length
Light Type	Fluorescent
Indoor/Outdoor Usage	Indoor
Wattage	40 watts
Light Color	Cool white

What size is F40CW?

Lamps, Fluorescent, U-shaped, Base: F40cw/u/6/wm, Length: 35, Diameter: T12 Medium Bi-pin, Light Output: 22.5 Inch, Efficiency: 1 1/2 Inch, Features: 14000 Hour, : 2300 Lumens, : 6…

Can I use F40 instead of F34?

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.

What is Holight?

“HO” stands for high output. T5 HO lamps deliver more light than standard T5 lamps and are available in higher wattages. HO lamps have the same diameter and length as standard T5 lamps.

Can you put a T8 LED bulb in a T12 fixture?

T8 tubes are simply 1 inch in diameter versus the 1.5 inch diameter of T12 tubes. In an effort to make LED tube lights compatible with the internal dimensions of most fixtures, you will find that most LED tube lights feature a T8 or 1 inch diameter. They can indeed be used in T12 fixtures.

Are F40 and T8 bulbs interchangeable?

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.

Can you replace fluorescent bulbs with LED?

Yes, you can replace fluorescent tubes with LED tubes or LED-integrated fixtures. If you just want to replace the bulbs, you can use plug-and-play, direct-wire, or hybrid LED tubes. Plug-and-play tubes are the easiest to install as they do not require any rewiring to the fixture.

What does F40CW mean?

F40CW/RS/EW is a model number for a Philips bi-pin 40 watt cool white , Rapid Start, tube. The “do not use in a residential fixtures” is a red herring, as this was stamped on the “ballast”, since the only limitation is to match 40 or 34 watt t12 tubes with the correct ballast.

Are fluorescent light bulbs interchangeable?

Even though the fluorescent light socket is exactly the same for both of them, they cannot operate on the same ballast. So the bottom line is that these are not interchangeable and if you’re going to upgrade from a T12 to a T8 bulb, then you also have to change out the ballast.