Datasheet

This distinctive NeoPixel flex strip has a gorgeous
diffused
neon-like
appearance thanks to its thick
silicone casing.
This strip contains 60 LED along the meter but in
groups of 3-LEDs-per-pixel. So basically, in your
NeoPixel program, this looks like a 20-pixel-long strand.
Unlike the other varieties of NeoPixel strip, this one
needs to be powered from 9 Volts (minimum) to 12 Volts
(ideal) DC.
NeoPixel RGB Neon-like LED Flex Strip with
Silicone Tube - 1 meter (https://adafru.it/Et3)
Ultraviolet NeoPixel Strips
© Adafruit Industries https://learn.adafruit.com/adafruit-neopixel-uberguide Page 43 of 100