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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BTF-LIGHTING 20 Pairs JST SM 3 Pin Connectors for WS2812B WS2811 WS2812 WS2814 SK6812 FOCB CCT LED Strip Female Male 15cm 22awg Wire

Product ID: 27916631

Details

Brand
BTF-LIGHTING
Cable Type
JST SM
Compatible Devices
LED Light LED
Connector Type
Jst Sm 3 Pin
Special Feature
3pin led

⚡Supports up to 12V low voltage

📏5.9-inch cable length

🔌3-pin JST SM connector

R474

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Description

⚡ Connect your brilliance—LED projects made effortless!

BULK PACK ADVANTAGE - 20 pairs included—perfect for large projects or multiple setups without running out.
PLUG PLAY SIMPLICITY - No soldering needed—connect your LED strips in seconds and save time.
UNIVERSAL COMPATIBILITY - Works seamlessly with WS2812B, WS2811, WS2814, SK6812 & more for ultimate versatility.
COMPACT DURABLE DESIGN - Slim 12cm x 1.5cm connectors with PVC insulation ensure long-lasting, safe connections.
PROFESSIONAL GRADE RELIABILITY - RoHS certified and trusted by over 1,100+ users with a 4.6-star rating.

The BTF-LIGHTING 20 Pairs JST SM 3 Pin Connectors offer a solder-free, reliable solution for connecting WS2812B, WS2811, WS2814, SK6812 LED strips and bulbs. Each 5.9-inch cable features durable PVC insulation and supports up to 12 volts, making it ideal for low-voltage LED projects. This bulk pack of 20 pairs ensures you have the connectors you need for professional-grade lighting setups, backed by strong customer satisfaction and RoHS compliance.

Specifications

ASIN	B01DC0KIT2
Best Sellers Rank	#24,963 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #44 in Track Lighting Connectors
Brand Name	BTF-LIGHTING
Cable Type	JST SM
Color	white us
Compatible Devices	LED Light Strip, LED Bulb, Low-voltage LED Project
Compatible Phone Models	No Compatible Phone Models
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	Jst Sm 3 Pin
Customer Package Type	Standard Packaging
Customer Reviews	4.6 4.6 out of 5 stars (1,162)
Ethernet Cable Category	Cat 5e
Indoor Outdoor Usage	Outdoor
Item Length	5.9 inches
Item Shape	Led Connector
Item Weight	0.1 kg
Manufacturer	BTF-LIGHTING Technology Co., Limited
Maximum Voltage	12 volts
Model	3PIN-SM
Number of Items	20
Number of Pins	3
Other Special Features of the Product	3pin led connector, Lightweight, colour_changing
Part Number	3PIN-SM
Recommended Uses For Product	LED Strip Connection, LED Bulb Connection, LED Project Connection
Specification Met	RoHS
UPC	602938070973
Unit Count	20 Count
Wattage	1 watts

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R474

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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