what gauge is the wire?

Seller is misinformed or lying - it's nowhere near 20 gauge. Maybe 24 or 26.

Will this work with the ws2812b 5mm width led strips?

It should. It lists ws2812B in the title and narrative. Hope this helps.

How do you connect jst sm 3 pin connectors to the arduino uno board and power the led's?

These connectors are for the WS2812B or neopixels, they are individually addressable so if they are in a strip you can control the color and intensity of each led. They have a positive, negative and a data connection. For more detailed information go to adafruit.com, they have wiring diagrams and sample code.

Is this just the connectors or is the ribbon cable attached to the connectors?

The ribbon cable is attached to the connector.

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3PIN SM LED Connector 10Pairs for WS2812B WS2811 LED Strip

Product ID: 48055742

Details

Brand
BTF-LIGHTING
Cable type
JST SM
Compatible devices
WS2812B LED
Connector type
3 pin Male and
Special feature
Waterproof

⚡Supports up to 12V power

💧IP30 splash resistant design

🔌3-pin male & female connectors

$30.79

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Description

🔗 Connect brilliance instantly—light up your space with zero hassle!

COMPACT YET MIGHTY - Lightweight 15cm cables that keep your lighting sleek and tidy.
SOLDERLESS SNAP GO - Effortless plug-in connection—no tools, no fuss.
PERFECT COMPATIBILITY - Seamlessly pairs with WS2812B, WS2811, SK6812 RGBW LED strips.
DURABLE ECO FRIENDLY - Crafted with heat-resistant, eco-conscious materials built to last.
DUAL GENDER FLEXIBILITY - Includes 10 pairs of male & female connectors for versatile setups.

The BTF-LIGHTING 3PIN SM LED Connector set offers 10 pairs of solderless, 3-pin male and female connectors designed for WS2812B, WS2811, and SK6812 LED strips. Featuring durable, eco-friendly cables with IP30 splash resistance and support for up to 12V, these 15cm connectors enable quick, tool-free LED strip connections, perfect for professional-grade lighting projects.

Specifications

ASIN	B01DC0KIT2
Best Sellers Rank	13,869 in Lighting ( See Top 100 in Lighting ) 59 in Connectors 2,962 in Speciality & Decorative Lighting
Brand	BTF-LIGHTING
Cable Type	JST SM
Colour	white
Compatible Devices	WS2812B LED Strip, WS2811 LED Strip, WS2812 LED Strip, WS2814 LED Strip, SK6812 LED Strip
Compatible Phone Models	No Compatible Phone Models
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	3 pin Male and Female
Country Of Origin	China
Customer Package Type	Standard Packaging
Customer Reviews	4.6 4.6 out of 5 stars (1,129)
Ethernet Cable Category	Cat 5e
Indoor Outdoor Usage	Indoor
Item Length	5.9 Inches
Item Shape	Led Connector
Item Weight	0.1 Kilograms
Manufacturer	BTF-LIGHTING Technology Co., Limited
Manufacturer Part Number	3PIN-SM
Maximum Voltage	12 Volts
Model Number	3PIN-SM
Number of Items	20
Number of Pins	3
Other Special Features of the Product	Waterproof
Recommended Uses For Product	LED strip connection, LED bulb connection, LED project connection
UPC	602938070973
Unit Count	1.0 meter
Wattage	1 watts

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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$30.79

Duties & taxes included

In stock

Sold byAmazon USADelivered 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 USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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