Will this work for 18” inch ring light or no?

I used this lamp on my desk lamp with magnifier. Worked ok . Not sure how you measured the 18 inches. Lamp is approximately 8 inches in diameter.

Does this bulb come with a plug or is it hard wired? i want to use it as an led ring behind my vanity mirror.

It is not an LED, it's a fluorescent bulb. It has a standard four-pin connector that must plug into a receiving fluorescent fixture. If you don't already have the fixture, this bulb isn't going to work for you.

I am using this for photography - not for home installment. How would I "plug in" the light for my purposes? It is unclear in the description/picture!

This bulb is only compatible with a certain type of receptacle. I believe there should be a 2 or 3 hole female plug near the interior of where the bulb would attach (the male attachment is also on the interior of the bulb). Unless you're replacing a similar bulb in a previously existing receptacle, I wouldn't recommend this bulb as it's unlike most other "screw-in" bulbs.

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FC16T9/CW 40W 05021 Fluorescent T9 Crcline Ceiling Light Bulb, 2600 Lumens, G10q 4-Pin Base, 40 Watts (16-Inch), 41K - Cool White

FC16T9/CW 40W 05021 Fluorescent T9 Crcline Ceiling Light Bulb, 2600 Lumens, G10q 4-Pin Base, 40 Watts (16-Inch), 41K - Cool White

Product ID: 378480773

Details

Brand
SunLite
Bulb Base
G13
Bulb Shape Size
FC16
Incandescent Equivalent Wattage
40 Watts
Light Colour
Cool White
Light Type
Fluorescent

⚡40W energy efficient power

💡2600 lumens bright output

🔧G10Q 4-pin easy install base

573.71 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💡 Light smarter, live brighter — don’t get left in the dark!

COOL WHITE AMBIANCE - 4100K color temperature delivers a crisp, modern glow perfect for work or relaxation.
EFFORTLESS INSTALLATION - G10Q 4-pin base ensures a quick, hassle-free setup—no electrician needed.
ECO FRIENDLY COMPLIANT - RoHS certified to reduce your carbon footprint without compromising on performance.
LONG LASTING RELIABILITY - Enjoy up to 10,000 hours of consistent, flicker-free lighting—less replacements, more productivity.
BRILLIANTLY BRIGHT EFFICIENT - Illuminate your space with 2600 lumens while saving energy at just 40 watts.

The Sunlite FC16T9/CW is a 16-inch circular fluorescent lamp delivering 2600 lumens of cool white light at 4100K. Operating efficiently at 40 watts with a G10Q 4-pin base, it offers easy installation and a long lifespan of up to 10,000 hours. RoHS compliant and designed for indoor use, it’s the perfect blend of eco-conscious performance and bright, consistent illumination for modern living and workspaces.

Specifications

ASIN	B009F90JLC
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	16-Inch Size, Easy To Install, Energy Efficient, G10Q 4-Pin Base, RoHS Compliant
Best Sellers Rank	#1,288,750 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,028 in Tube Lights & Battens
Brand Name	SunLite
Bulb Base	G13
Bulb Shape Size	FC16
Color Rendering Index	62.0
Color Temperature	4100 Kelvin
Colour	4100K Cool White
Connectivity Technology	wired
Control Method	App
Controller Type	Push Button
Customer Reviews	4.5 4.5 out of 5 stars (441)
Efficiency	Efficient
Incandescent Equivalent Wattage	40 Watts
Included Components	Circline Bulb
Indoor Outdoor Usage	Indoor
Item Dimensions W x H	29W x 406H Millimeters
Item Type Name	Bulb, 2600 Lumens, G10q 4-Pin Base, 40 Watts (16-Inch),
Item Weight	431 g
Light Color	Cool White
Light Output Maximum	2600 Lumens
Light Source Operating Life	10000 Hours
Light Source Type	Linear Fluorescent Lamp
Light Source Wattage	40 Watts
Light Type	Fluorescent
Manufacturer	Sunshine Lighting
Manufacturer Part Number	FC16T9/CW
Material Type	Glass
Model Name	40W 05021 Fluorescent T9 Crcline Ceiling Light
Model Number	FC16T9/CW
Number of Items	1
Package Quantity	1
Power Consumption	40 Watts
Power Source Type	Corded Electric
Shape	Circular
Specific Uses For Product	Lamp
Specification Met	RoHS
Style Name	Classic
UPC	653703050218
Unit Count	1.0 Count
Voltage	120 Volts
Wattage	40 Watts
White Brightness	2600 Lumens

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