How close to the area to clean does it have to be?

They claim 400 sq ft area. That's a big area, 20' X 20', and I have doubts about that having used germicidal U/V lights at the plant where I worked for 45 yrs. And, you can only get kill 'line-of-sight'. Problem is, you don't know when the bulb's output at 254 nm gets weak. They have to be changed out according to mfg's recommendations. The only way to really be sure it's working is to swab an area you know had active growth. I use them for stain removal w/ H2O2. You're no doubt using them for disinfection. I would not buy the ones that produce ozone.

will it stay on always also? or only timer? replacement bulb available?

Yes. As long as the light is plugged in, the light will stay lit. I have mine plugged into a smart plug for which I created an Alexa routine to turn the light on and off at pre-set times.

The listing says "uvc lamp with ozone, uv light bulb sanitizer, 185nm wavelength", but the details list it as 253.7 nm bulb. what wavelength is sold?

both versions, you select "with ozone and timer $23.99" or "Ozoe free $17.99" a little further down the webpage

Does the room need to be dark? No sun light?

Not from my experience. However I will state one thing. It says ozone free. I can't check mine bc no meter but it highly irritates my eyes if I don't let the room air out for a few after using it. So may want to check that

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Coospider 6W UV Light Ozone Free, 253.7nm Sanitizer Lamp with Cord and Plug, UVC Lamp for Shoes/Closet/Cabinet/Bathroom 110V CTUV-6

Product ID: 665053754

Details

Brand
COOSPIDER
Bulb Shape Size
T5 1/2
Light Type
Fluorescent
Special Feature
Timer
Wattage
6 watts

💡6W power-efficient UVC output

📏Covers up to 100 sq.ft. area

⏲️Built-in timer for controlled sanitization

142.56 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✨ Elevate your space with ozone-free UV power—clean smarter, live fresher! 🌟

SAFE SMART USAGE - Infrared control and timer ensure precise operation—just step out and let it work its magic.
VERSATILE PLACEMENT - Perfectly designed for shoes, closets, cabinets, bathrooms, and even pet beds or washing machines.
EFFORTLESS INSTALLATION - Quick-rotate T5 bulb and flexible mounting options with screws or double-sided stickers.
TRUSTED QUALITY ASSURANCE - Backed by 8 years of UV expertise and rigorous factory testing for peace of mind.
SUNLIGHT PURE SANITIZATION - Harness 253.7nm ozone-free UVC rays that refresh your space without harsh ozone odors.

The Coospider 6W UV Light Sanitizer Lamp delivers powerful 253.7nm ozone-free UVC rays to disinfect up to 100 sq.ft. Its versatile design fits shoes, closets, cabinets, and more, with easy installation and a built-in timer for safe, efficient sanitization. Engineered with 8 years of UV expertise and quality-tested, it’s the smart, clean choice for modern homes.

Specifications

ASIN	B0B5CV9PB5
Additional Features	Timer
Best Sellers Rank	#95,498 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #466 in Fluorescent Tubes
Brand	COOSPIDER
Brand Name	COOSPIDER
Bulb Base	G5
Bulb Diameter	1.4 inches
Bulb Shape Size	T5 1/2
Color	Blue
Connectivity Protocol	Infrared
Connectivity Technology	Infrared
Control Method	App
Controller Type	Push Button
Customer Reviews	4.2 out of 5 stars 233 Reviews
Global Trade Identification Number	16973937720697
Included Components	User Manual
Indoor Outdoor Usage	Indoor
Item Dimensions W x H	1.4"W x 9.25"H
Light Color	Blue
Light Source Operating Life	9000 hours
Light Source Type	UVC
Light Source Wattage	6 watts
Light Type	Fluorescent
Manufacturer	COOSPIDER UV
Manufacturer Part Number	CTUV-6
Material Type	Fiberglass
Model Name	CTUV-6
Model Number	CTUV-6
Number of Items	1
Package Quantity	1
Power Consumption	6 watts
Shape	Tubular(T)
Special Feature	Timer
Specific Uses For Product	Home
Style Name	6w lamp (ozone free)
Theme	Sanitization
Unit Count	1 Count
Voltage	110
Wattage	6 watts

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142.56 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

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