Will one of these 18W bulbs work in a Coleman lantern that has been using a 13W bulb (hopefully, only draining batteries more quickly)?

Doubt it. The base has plastic tabs that key it for different wattages, your light should have slots aligned to only take 13w (and possibly lower) bulbs. I think that the picture for this product is wrong, my 13w bulbs have the keys at 12 and 6 o'clock , and 18w has keys at 5 and 11.

Can this replace a cooper r10 13w/4p?

If the base is 4 Pin G24q-1, then it will replace without a issue

Is this for G24q-2 base or G24q-1? It says g24q-2 in the description, but the picture looks like a g24q-1.

G24q-2 as all 18watts are manufactured with the plastic piece sticking out on the bottom slightkh moved over from the center.

Is this truly rated for outdoor use? The Amazon listing says it is, but the actual packaging makes no mention of outdoor use. And the website is dead.

I bought for indoor use so I can’t help you

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Circle PLC-18W 827 CFL Bulb, G24q-2 4-Pin 18W 2700K Warm White, 4 Pack | Replaces Sylvania 20683, Philips 38329-9 & PL-C 18W/827/4P/ALTO. Compatible with electronic ballasts. 10,000-hour rated life.

Circle PLC-18W 827 CFL Bulb, G24q-2 4-Pin 18W 2700K Warm White, 4 Pack | Replaces Sylvania 20683, Philips 38329-9 & PL-C 18W/827/4P/ALTO. Compatible with electronic ballasts. 10,000-hour rated life.

Product ID: 28504241

Details

Brand
Circle
Bulb Shape Size
T4
Light Type
CFL
Special Feature
Energy
Wattage
18 watts

⏳10,000-hour rated lifespan

💡18W energy-efficient power

🌡️2700K warm white glow

€ 49.55

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💼 Light up your workspace with efficiency and warmth—because your office deserves the best.

VALUE PACKED 4 PACK - Four individually tested bulbs in one set—ideal for upgrading multiple fixtures with confidence and style.
LONG LASTING EFFICIENCY - Consumes just 18W while delivering 1200 lumens, cutting energy costs without sacrificing brightness.
PLUG PLAY COMPATIBILITY - Seamlessly fits G24q-2 4-pin sockets—no rewiring needed for instant-start or programmed-start ballasts.
TRUSTED BRAND REPLACEMENT - Directly replaces top models like Sylvania 20683 & Philips 38329-9, ensuring flawless fit and performance.
WARM AMBIANCE WITH TRUE COLORS - 2700K warm white light with 82 CRI creates inviting, natural tones perfect for professional and cozy spaces.

The Circle PLC-18W 827 CFL Bulb is a 4-pack of energy-efficient, warm white compact fluorescent bulbs designed for G24q-2 4-pin sockets. Compatible with most electronic ballasts, these bulbs deliver 1200 lumens at 2700K color temperature with an 82 CRI, ensuring natural color rendering. Rated for 10,000 hours, they offer long-lasting, cost-effective lighting ideal for professional and hospitality environments.

Specifications

ASIN	B01FR8KON2
Accepted Voltage Frequency	100 to 120 Volts and 60 Hertz
Additional Features	Energy Efficient
Best Sellers Rank	#4,352 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Compact Fluorescent Bulbs
Brand Name	Circle
Bulb Base	G4
Bulb Shape Size	T4
Color	2700k
Color Rendering Index	82.0
Color Temperature	2700 Kelvin
Connectivity Technology	Normal bulb
Control Method	App
Controller Type	Push Button
Customer Reviews	4.2 4.2 out of 5 stars (3,661)
Efficiency	66.67 lumens/watt
Incandescent Equivalent Wattage	13 Watts
Included Components	4 light bulbs
Indoor Outdoor Usage	Indoor
Item Weight	9.88 ounces
Light Color	White
Light Source Operating Life	12000 Hours
Light Source Type	Fluorescent
Light Source Wattage	18 Watts
Light Type	CFL
Manufacturer	Circle
Manufacturer Part Number	121
Material Type	Glass
Model Name	PCL-CLC 18W
Model Number	PCL-CLC Parent
Number of Items	4
Package Quantity	4
Power Consumption	18 Watts
Power Source	Corded Electric
Shape	t4
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Lamp
UPC	030465197113
Unit Count	4.0 Count
Voltage	120 Volts
Wattage	18 watts
White Brightness	1200 Lumens

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€ 49.55

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Greece.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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