How to wire 300 blue LEDs?

[Colttt]

I would like to wire 300 blue LEDs to one power source in order to light up a tree. What is the best way to do this?

 

[Avo Mk8]

https://www.amazon.com/LJLNION-Lighting-Waterproof-Christmas-Decorations/dp/B088FNXFN2/ref=sr_1_1?

Many brands and numbers of lights to choose from.
Power brick indoors, extend low voltage cable to lights outside if necessary (maintaining polarity!).
Too tedious to make something when already available at reasonable prices.

I'm assuming you don't mean 300 blue spotlights

 

[Colttt]

https://www.amazon.com/LJLNION-Lighting-Waterproof-Christmas-Decorations/dp/B088FNXFN2/ref=sr_1_1?

Many brands and numbers of lights to choose from.
Power brick indoors, extend low voltage cable to lights outside if necessary (maintaining polarity!).
Too tedious to make something when already available at reasonable prices.

I'm assuming you don't mean 300 blue spotlights

Thank you Avo Mk8! There are a few specific reasons for me wiring the lights myself. Also, I would like to learn along the way with this project in order to be better prepared for future projects! So, the tedious-ness will not bother me.

Have any suggestions on how to wire the LEDs?