![electrical - Two switch box with 12/2 and 12/3 circuits with cojoined hot wires, is this safe? - Home Improvement Stack Exchange electrical - Two switch box with 12/2 and 12/3 circuits with cojoined hot wires, is this safe? - Home Improvement Stack Exchange](https://i.stack.imgur.com/toDJM.jpg)
electrical - Two switch box with 12/2 and 12/3 circuits with cojoined hot wires, is this safe? - Home Improvement Stack Exchange
What kind of wire (e.g. 12/2 or 12/3) do I use to extend/splice existing 12 ga wires in a wall if I plan to put in a smart switch? - Quora
![ASHATA Electrical Wire/12 AWG 3 Core Round Black Electrical Cable OFC Copper Power Wire - 2m/6.6ft Cut Length Flexible Pond Cable, for Most Power Filters, Stereos, Bile Machines, etc: Amazon.co.uk: Electronics & ASHATA Electrical Wire/12 AWG 3 Core Round Black Electrical Cable OFC Copper Power Wire - 2m/6.6ft Cut Length Flexible Pond Cable, for Most Power Filters, Stereos, Bile Machines, etc: Amazon.co.uk: Electronics &](https://images-eu.ssl-images-amazon.com/images/I/61ZPxfnNdqL._AC_UL210_SR210,210_.jpg)
ASHATA Electrical Wire/12 AWG 3 Core Round Black Electrical Cable OFC Copper Power Wire - 2m/6.6ft Cut Length Flexible Pond Cable, for Most Power Filters, Stereos, Bile Machines, etc: Amazon.co.uk: Electronics &
![electrical - 12/2 connected to 8/3 wire with extra wires taped off. Is this legal? - Home Improvement Stack Exchange electrical - 12/2 connected to 8/3 wire with extra wires taped off. Is this legal? - Home Improvement Stack Exchange](https://i.stack.imgur.com/0rkxG.jpg)
electrical - 12/2 connected to 8/3 wire with extra wires taped off. Is this legal? - Home Improvement Stack Exchange
![Southwire 250-ft 12 / 3 Romex SIMpull Solid Indoor Non-Metallic Wire (By-the-roll) in the Non-Metallic Wire department at Lowes.com Southwire 250-ft 12 / 3 Romex SIMpull Solid Indoor Non-Metallic Wire (By-the-roll) in the Non-Metallic Wire department at Lowes.com](https://mobileimages.lowes.com/productimages/0b0cc54b-7a28-4b39-b409-59706abe79ce/00539426.jpg)
Southwire 250-ft 12 / 3 Romex SIMpull Solid Indoor Non-Metallic Wire (By-the-roll) in the Non-Metallic Wire department at Lowes.com
![electrical - Pair of 12/3 wires in outlet box showing neutral-ground voltage - Home Improvement Stack Exchange electrical - Pair of 12/3 wires in outlet box showing neutral-ground voltage - Home Improvement Stack Exchange](https://i.stack.imgur.com/yr6qF.png)