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The LED Authority

Philips 22W 8in Diameter T9 Daylight White Circline Bulb

SKU: 392357 | Ordering Code: FC8T9/D (Daylight)  | UPC: 46677392352

$9.49 per Bulb
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Product Highlights

  • Estimated life of 11 years based on 3 hours use per day

Lighting Facts Per Bulb

Brightness 675 lumens
Estimated Yearly Energy Cost $2.65
Based on 3 hrs/day, 11¢/kWh
Cost depends on rates and use
Based on 3 hrs/day11 years
Light Appearance
6500 K
Energy Used22 watts

Philips 22 Watt T9 circline fluorescent lamp.

  • "Daylight" white color for a much brighter appearance

  • Higher color rendering makes colors appear brighter and closer to their true color

  • Performance - brand name product at competitive price

Full Specs


Philips Lighting

Model Number


Energy Used

A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.
Energy Used
22 Watts


The end (or ends) of the lamp that fits into the socket.

Bulb Shape

The description of the general appearance of a lamp/bulb consists of a letter(s) followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. For example, a common household bulb is the A-19. The bulb is "A" shape and the diameter would be nineteen 8ths of an inch, or 2 3/8".
Bulb Shape

Bulb Color

The color of the light produced by a bulb
Bulb Color
Daylight White


Color Rendering Index is an international system used to rate a lamp's ability to render object colors. The higher the CRI (based upon a 0-100 scale) the richer and more accurately colors generally appear. CRI differences among lamps are not usually visible to the eye unless the difference is more than 3-5 points.

Color Temperature (Kelvin)

An expression of the hue of the light emitted, measured in degrees Kelvin. Usually expressed by a four digit number followed by (k), such as 2700k. Higher temperatures indicate whiter, "cooler" colors, while lower temperatures indicate yellower, "warmer" colors. Some common Kelvin temperature benchmarks are 2700k (warm white), 3500k (neutral white), 4100k (cool white), 5000k (bright white), and 6500k (daylight).
Color Temperature (Kelvin)

Brightness (Lumens)

A rating of the initial light output of a bulb, rated after 100 hrs of operation. Lumens are a measure of how much light falls on one square foot of area, one foot away from the light source.
Brightness (Lumens)

Bulb Finish

The surface finish of a bulb, which may affect the quality of the light emitted.
Bulb Finish

Bulb Technology

The technology implemented by the bulb, e.g. incandescent, halogen, LED
Bulb Technology

Average Rated Life (hr)

A measurement of the average length of time, between first use and the point when 50% of the lamps tested have stopped functioning, , using an operating cycle of 3 hours on, 20 minutes off.
Average Rated Life (hr)

Length (in)

Also referred to as "Maximum Overall Length" (MOL). For light bulbs, it measures the length of a light bulb, from the top of the bulb to the bottom of the base or pins and is typically expressed in inches. For light fixtures and ballasts, it applies to the total horizontal length of the item.
Length (in)

Diameter (in)

Light bulbs: a measurement of a bulb's width taken at the widest point of the bulb. Fixtures: the measurement across the widest point of a circular fixture.
Diameter (in)

Contains Mercury (Hg)

Contains some level of the element Mercury. Typically, bulbs containing Mercury display the symbol 'Hg'.
Contains Mercury (Hg)


A General Electric brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
11029 - FC8T9/D

Osram Sylvania

An Osram Sylvania brand-specific product number for an equivalent item and is provided for the purpose of cross-referencing.
Osram Sylvania
20080 - FC8/T9/RS
Customer Reviews

Quality Bulb


Bought as a replacement for a magnifying lamp, it works well.

1st facial

Fairhope, AL


Just what I was looking for.


This bulb is used in a light that I use when I work on pocket watches. I had a regular flourescent bulb in it and was amazed at the difference. It's just like working out in the outdoors. Just what I was looking for. The staff was very helpful in helping me select the correct light bulb. Definitely would buy another one. Thanks!


Maysville, Georgia


I would by this product again.


Just the right type of light for the work/hobby bench (Daylight) can not find at the big box stores.


Lakeland Fl


Good price for a average product


Bought this lamp for my magnifying glass. The bulb parts are very fragile, I though it was broken when i opened the package. It is working well so far.

G. Esthetician

San francisco


Philips 22W 8in Diameter T9 Daylight White Circline Bulb

4.3 4


Q & A
Good morning. Sorry to bother you, but I was not 100% sure that the 22 Watt, 8 1/4" Diameter Daylight White T9 Circline Bulb would be the correct replacement for my burned out JINN LIGHTING FCL22W DAYLIGHT bulb. The lamp It came off of just says to use an CIRCLINE Fluorescent T9 22W. This would be the correct bulb replacement would it not.?


Based on the information provided, this would be the correct bulb. It is a 22 Watt, T9 Circline bulb. It may be helpful to measure the diameter of the lamp currently being used. If it measures 8 1/4" then the bulb on our site will fit properly in the fixture.

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