ahh, i see.
well same setup applies, wouldn’t it? just wire in the extra pins. might not need the level shifter, though it probably wouldn’t hurt anything and the level shifter has 4 channels, 1 for each R G B & W.
i’ve only used the addressable strips (WS2811, WS2812, & SK6812) so it’s possible I’m wrong about the simple rgbw strips, but seems to make sense to me.
and just use the code below (tweaked for your own needs) and hopefully you get your setup working how you want it.
# Example configuration entry
- platform: rgbw
name: "Livingroom Lights"
# Example output entry
- platform: esp8266_pwm