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.

3pin Sm Led Connector 10pairs For Ws2812b Ws2811 Led Strip

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Description

🔗 Connect brilliance instantly—no solder, no stress, just glow!

COMPACT YET POWERFUL - Lightweight 20AWG wire ensures reliable conductivity without bulk—perfect for sleek setups.
SOLDERLESS SNAP GO - Effortless plug-and-play connection—no soldering needed, saving you time and hassle.
WATER RESISTANT CONFIDENCE - IP30 rating protects your connections from splashes, ideal for indoor ambient lighting.
UNIVERSAL LED COMPATIBILITY - Seamlessly connects WS2812B, WS2811, WS2814, and SK6812 LED strips for versatile projects.
DURABLE ECO FRIENDLY CABLE - Crafted with high-temp resistant, environmentally safe materials for long-lasting performance.

The BTF-LIGHTING JST SM 3 Pin Connectors offer a solderless, quick-connect solution for WS2812B and compatible LED strips. Featuring durable, eco-friendly 20AWG wiring and an IP30 splash-resistant rating, these connectors ensure reliable, hassle-free LED installations with support for up to 12 volts. Perfect for professionals and DIYers seeking clean, efficient LED strip connections.

Specifications

ASIN	B01DC0KIT2
Best Sellers Rank	9,887 in Lighting ( See Top 100 in Lighting ) 33 in Connectors 1,920 in Speciality & Decorative Lighting
Brand	BTF-LIGHTING
Cable Type	JST SM
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	Probably compatible with smartphones, specific models not mentioned
Compatible devices	WS2812B LED Strip, WS2811 LED Strip, WS2812 LED Strip, WS2814 LED Strip, SK6812 LED Strip
Compatible phone models	Probably compatible with smartphones, specific models not mentioned
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	jst sm
Connector type	jst sm
Country Of Origin	China
Customer Package Type	Standard Packaging
Customer Reviews	4.6 out of 5 stars 1,072 Reviews
Ethernet Cable Category	Cat 5e
Indoor Outdoor Usage	Indoor
Item Weight	0.1 Kilograms
Manufacturer	BTF-LIGHTING Technology Co., Limited
Maximum Voltage	12 Volts
Model Number	3PIN-SM
Number of Pins	3
Other Special Features of the Product	Waterproof
Recommended Uses For Product	LED strip connection, LED bulb connection, LED project connection
Special feature	Waterproof
UPC	602938070973
Unit Count	1.0 meter
Wattage	1 watts

Reviews

G**H

Great quality

Used to fix a customers crosstrainer. Great quality

3.08.2023

M**Y

Five Stars

good Product

15.07.2018

M**.

Item as described - a bit slow delivery

15.02.2019

S**R

Contents didn't match the label - beware - quality issues.

The label on the pack was correct, but the contents of the pack were entirely female connectors. So this points to quality issues - be aware that it will put your project back days while you return and get another set and roll the dice again.

19.05.2025

A**K

DANGEROUS No way are they 20AWG

Sold as 20AWG but when measured they were (being generous) 25AWG which can take half the current load. This could easily lead to someone overloading them and in the worst case causing a fire. Will be returning.

29.10.2018

C**N

its ok

Easy to click for selfies and video taking.

25.05.2021

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