Answers to the Most Common DIY LED Questions

Thanks to my Sponsor: https://www.pcbway.com/

If you're trying to DIY your Holiday LEDs, chances are good you've asked at least one of these questions:
How many LEDs can I run on 1 NodeMCU?
How much Current do these LEDs actually Draw?
How do I wire 12v LEDs with a 5v Controller?
How many Strings can I run from 1 NodeMCU?
How far can my LED strip be from my Controller?
WTH is a "Sacrificial Pixel"?
How do I use a Pixel to Boost the Data Signal?
This video answers those questions, and a few more.
Hope it's helpful!

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Links:
Amazon -
5v ws2812 Strips: https://amzn.to/2MwXG1P
5v ws2812 Strips Waterproof: https://amzn.to/2B5TQHG
12v ws2815 strips: https://amzn.to/2MF66o2
5v or 12v ws2811 strings: https://amzn.to/35rRrFi
NodeMCU: https://amzn.to/35oGc0a
Aluminum Channel (50cm): https://amzn.to/2ILM2PE
LED strip clips: https://amzn.to/2BiQP6Q
22 awg wire (10m): https://amzn.to/2B6SqfS
T quick splice connectors: https://amzn.to/35IGS0r
Bare Metal Power Supplies: https://amzn.to/2MC8EmL
Enclosed Power Supplies: https://amzn.to/2YLa5nm
Wall wart Power Supplies: https://amzn.to/2ETbVec
Barrel Adapter (5.5x2.1) Screw: https://amzn.to/2njMcWG
12v to 5v wired: https://amzn.to/2B5SJI0
12v to 5v Screws: https://amzn.to/2OFgoa9
Jumper Wires: https://amzn.to/2YLM2EV

Aliexpress -
5v Strips: http://s.click.aliexpress.com/e/Kceu4gks
12v Strings: http://s.click.aliexpress.com/e/pyashnIC
12v ws2815 strips: http://s.click.aliexpress.com/e/D1inmwpE
5v ws2811 strings: http://s.click.aliexpress.com/e/2cG5MhrK
NodeMCU: http://s.click.aliexpress.com/e/pI2wgExm
Aluminum Channel (50cm): http://s.click.aliexpress.com/e/sHXT8lzI
22 awg wire (10m): http://s.click.aliexpress.com/e/5pF6A6cg
T quick splice connectors: http://s.click.aliexpress.com/e/rBAUS9oM
Bare Metal Power Supplies: http://s.click.aliexpress.com/e/DVyBTarA
Enclosed Power Supplies: http://s.click.aliexpress.com/e/FTyEPUzi
Barrel Adapter (5.5x2.1) Button: http://s.click.aliexpress.com/e/qiOWux7w
Barrel Adapter (5.5x2.1) Screw: http://s.click.aliexpress.com/e/obHLvgne
12v to 5v wired: http://s.click.aliexpress.com/e/4oWYDDGy
or 12v to 5v w/ USB connector: http://s.click.aliexpress.com/e/M0WA4lcM
Jumper Wires: http://s.click.aliexpress.com/e/buqEtUlE

Ikea Cable Management:
https://www.ikea.com/us/en/p/rabalder-cable-organizer-white-20281419/

Thin-walled PVC:
https://www.lowes.com/pd/Charlotte-Pipe-3-4-in-x-10-ft-200-SDR-21-PVC-Pipe/3133103

WLED: https://github.com/Aircoookie/WLED/releases
ESPhomeFlasher: https://github.com/esphome/esphome-flasher/releases
J-channel Hole Jig: https://github.com/Snipercaine/Holiday-LED-files/tree/master/stl