NeoPixel RGBW 30 led strip : need help setting it up

Paul__B:
What battery?

What are you using as a 5 V power supply to power the 30 LED strip? Once you have that, you can use it to power the Arduino as well.

The battery is on the picture, on the right. I use it to directly power the LED strip. Arduino is plugged in via micro USB to my computer for now.

Grumpy_Mike:
By the way you can find out how to post images here by reading
How to use this forum
And
image guide

I did use the auto img tags and provided the link to the image, but it didn't show so I edited to add the link directly.