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AliExpress Ultra-Thin Dimmable COB LED Strip (12V, 3mm)
AliExpress Ultra-Thin Dimmable COB LED Strip (12V, 3mm), view 2AliExpress Ultra-Thin Dimmable COB LED Strip (12V, 3mm), view 3AliExpress Ultra-Thin Dimmable COB LED Strip (12V, 3mm), view 4AliExpress Ultra-Thin Dimmable COB LED Strip (12V, 3mm), view 5AliExpress Ultra-Thin Dimmable COB LED Strip (12V, 3mm), view 6
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Ultra-Thin Dimmable COB LED Strip (12V, 3mm)

$2.43$5.64Save 57%

In stock at aliexpress.com

An ultra thin 3 mm COB LED strip on 12V with dimmable color temperature options of 3000K, 4000K and 6000K and 400 LEDs per meter, for home decor lamps, at $2.43. It is a very slim flexible strip. AliExpress shows over 2,000 orders and 98% positive feedback; length is not stated.

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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.

Highlights

  • 3 mm width
  • 12V COB strip
  • 3000K, 4000K, 6000K options
  • 400 LEDs per meter

Best for

Tight spots where a thin strip is required.

Things to consider

  • Length and power adapter are not stated
  • Very thin strips need careful soldering or special connectors
  • Delivery from overseas typically takes one to three weeks, and any problem is resolved through your AliExpress order

Key specs

Price$2.43
Width3 mm
Voltage12V
Density400 LEDs/m
Color temperature3000K, 4000K, 6000K
AliExpress seller dataOver 2,000 orders, 98% positive feedback

Our take

A slim strip for tight decor jobs.

Ultra-Thin Dimmable COB LED Strip (12V, 3mm) at a glance

BrandAliExpress
Price$2.43 (was $5.64)
TypeLED Lighting
AvailabilityIn stock at aliexpress.com
ReturnsEligible items can be returned within 90 days of payment, with the first return on each…

Price check

At $2.43, the Ultra-Thin Dimmable COB LED Strip is one of AliExpress's more affordable items, whose 51,717 listed products run $1 to $1,229.

It's currently 57% below its listed price of $5.64. Sale prices can end without notice, so check the live price before you order.

Similar items from other brands we track run $8.81 to $149.99.

Buying from AliExpress

AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay.

Shipping
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Returns
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
Warranty
AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Payment
US shoppers can pay by Visa, Mastercard, American Express or Discover, PayPal, Apple Pay and Google Pay. Instalment options such as Klarna and PayPal Pay Later appear on some orders, and availability varies.
International
AliExpress sells to shoppers worldwide. For US orders, import duties on low-value parcels have applied since the duty-free exemption ended in 2025, and state sales tax is added at checkout.

Read our full AliExpress review and shop all products →

Frequently asked questions

Is a power supply included?
The title doesn't say one is included. You will probably need a 12V supply.
Which color should I pick?
3000K is warm white for living rooms, 4000K is neutral and 6000K is a cool daylight white.
How long will I wait for it?
Expect one to three weeks from the overseas seller. Check the final total, because duties can apply.
Is the Ultra-Thin Dimmable COB LED Strip on sale?
Yes. AliExpress lists it at $2.43, down from $5.64 (57% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the Ultra-Thin Dimmable COB LED Strip?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the Ultra-Thin Dimmable COB LED Strip come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the Ultra-Thin Dimmable COB LED Strip?
The Ultra-Thin Dimmable COB LED Strip is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the Ultra-Thin Dimmable COB LED Strip in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.
Is the Ultra-Thin Dimmable COB LED Strip expensive?
At $2.43 it is on the affordable end of AliExpress's range ($1 to $1,229 across 51,717 products), and similar items from other brands run $8.81 to $149.99.

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