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.
Is F40CW a T12?
Product Description. (2 Pack) Sylvania F40CW / F40CWX 40 Watt T12 Fluorescent Tube Light Bulb 4100K coated with Lumativ, a patented, photocatalytic coating that uses a light activated Photocatalytic process and Nanotechnology that breaks down volatile organic compounds (VOCs) and odors.
Is cool white fluorescent?
Cool white fluorescent bulbs have a medium to high color temperature, and produce light that is plain white or icy white in color. The highest color temperatures produce an even bluer light, which includes the reds and oranges from the previous temperatures but adds blue wavelengths that tint the overall spectrum.Apr 30, 2018
What color is cool white light?
Kelvins Type of Lamp Colour
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2700k Conventional Halogen and LED Lamp - Yellow Warm
3000k Warm White
4000k CFL and LED - White Cool White
5000k Daylight
Is cool white light blue?
Cool white light contains more blue light and looks brighter to the eye (this is why cool white bulbs have a higher lumen output when compared to the equivalent warm white bulb). It also seems people from sunnier countries tend to prefer white light compared to people from cooler countries who prefer more warm light.
What color is cool white light bulb?
Bulbs that provide light at around 3000K to 3500K may be considered "white" or "soft white." Bulbs that provide light at around 4100K to 5000K are considered "cool white" and these start to have a slightly blue feel to them.Mar 14, 2018
What does F40 bulb mean?
F40 is wattage, T is “tube”, 40 is diameter (12/8 “), and WW means warm white. Fluorescent Lamp Identification. 349 views.
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.
How do you install a F40 T12 bulb?
https://www.youtube.com/watch?v=3keaqAXeuQI
What is T12 size?
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.May 16, 2019
Can I replace a 34W fluorescent bulb with a 40W?
Usually it's fine to swap a 40W tube with a 34W tube, but some ballasts can overheat with a 34W tube installed. ... The main risk of using a mismatched tube/ballast is that the life of either or both can be shortened.