Will this fit my fixture?

It fits fixtures that take a 22-watt T9 circline with a G10Q four-pin base. Check the old tube's wattage and base before ordering; a different pin count or wattage will not work.

Does it need a ballast?

Yes. It runs on the fluorescent ballast already in the fixture. It cannot be wired directly to mains power the way an LED retrofit can.

How bright is 910 lumens?

About the same as a 75-watt incandescent bulb. That is enough for a workbench, magnifier lamp or small ceiling fixture.

Is 6500K too blue for a bedroom?

6500K is a cool daylight white with a visible blue cast. It suits task and utility lighting better than warm, relaxed rooms.

How does it compare with an LED circline?

LED retrofits last longer, start instantly in the cold and often bypass the ballast. This fluorescent is the simpler drop-in if your ballast is healthy and you want the original daylight color.

Does it contain mercury?

Yes, as a fluorescent lamp it contains a small amount of mercury. Recycle it at a hazardous-waste or bulb drop-off rather than putting it in household trash.

PHILIPS

8 in. T9 22-Watt Daylight Deluxe (6500K) Circline Fluorescent Light Bulb

Best price now

$16.00at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

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PHILIPS

8 in. T9 22-Watt Daylight Deluxe (6500K) Circline Fluorescent Light Bulb

Best price now

$16.00at WalmartChecked Nov 8

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $16.00 at Walmart on Nov 8.

Our take on the 8 in. T9 22-Watt Daylight Deluxe (6500K) Circline Fluorescent Light Bulb

This is a 22-watt circular T9 fluorescent tube with a G10Q four-pin base and a 6500K daylight color. It puts out about 910 lumens, roughly what a 75-watt incandescent gives, while drawing a quarter of the power. The ring shape suits ceiling fixtures, magnifier lamps and strip lighting where a straight tube will not fit. It is a legacy fluorescent lamp: LED circline replacements now last far longer and start instantly in the cold, so buy this only if your fixture has a magnetic or older electronic ballast built for 22W circlines.

Best forReplacing a burned-out 22W circline in an existing fixtureMagnifier and task lamps that take a G10Q ring tubeCeiling and strip fixtures needing cool daylight white

Pros

910 lumens from 22 watts, about 75% less energy than an equivalent incandescent
6500K daylight color suits workshops, kitchens and task lighting
Ring shape spreads light evenly in circular fixtures
Long rated life compared with incandescent bulbs
Direct replacement for standard 22W G10Q circlines

Cons

Needs a compatible fluorescent ballast; will not run on line voltage alone
Fluorescents are slower to full brightness in cold rooms
Contains mercury, so disposal needs care
LED circline retrofits now beat it on life and cold-weather starting
6500K is bluish and harsh for living rooms and bedrooms

8 in. T9 22-Watt Daylight Deluxe (6500K) Circline Fluorescent Light Bulb prices at every store

WalmartNew
In stockSold by EXWAY ELECTRIC SUPPLY COReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$16.00Free shippingChecked Nov 8
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About the 8 in. T9 22-Watt Daylight Deluxe (6500K) Circline Fluorescent Light Bulb

This is an 8-inch T9 circline fluorescent bulb with a circle shape. It uses 22 watts and has a G10q base. It gives off a bright, cool, bluish light that resembles daylight.

The bulb fits various mounted fixtures and can be used for indoor lighting in a home, office or other indoor space. It can replace strip lighting and incandescent bulbs.

As a fluorescent bulb, it uses 75% less energy than an incandescent bulb and can last up to 10 times longer. Its light output is equivalent to an incandescent bulb of over 75 watts.

Brand: Philips
Bulb type: T9 circline fluorescent
Diameter: 8 in.
Wattage: 22 W
Base: G10q
Color temperature: 6500K, Daylight Deluxe
Luminous flux: 910, equivalent to an incandescent bulb of over 75 W
Use: Indoor

Questions and answers

Will this fit my fixture?: It fits fixtures that take a 22-watt T9 circline with a G10Q four-pin base. Check the old tube's wattage and base before ordering; a different pin count or wattage will not work.
Does it need a ballast?: Yes. It runs on the fluorescent ballast already in the fixture. It cannot be wired directly to mains power the way an LED retrofit can.
How bright is 910 lumens?: About the same as a 75-watt incandescent bulb. That is enough for a workbench, magnifier lamp or small ceiling fixture.
Is 6500K too blue for a bedroom?: 6500K is a cool daylight white with a visible blue cast. It suits task and utility lighting better than warm, relaxed rooms.
How does it compare with an LED circline?: LED retrofits last longer, start instantly in the cold and often bypass the ballast. This fluorescent is the simpler drop-in if your ballast is healthy and you want the original daylight color.
Does it contain mercury?: Yes, as a fluorescent lamp it contains a small amount of mercury. Recycle it at a hazardous-waste or bulb drop-off rather than putting it in household trash.
Where is the 8 in. T9 22-Watt Daylight Deluxe (6500K) Circline Fluorescent Light Bulb cheapest?: At Walmart, for $16.00, as of our latest check.