Sk6812 3535 rgbw led

Hardware
1

Hi

SK6812 RGBW 3535 LEDs,
http://ledstrip-china.com/productshow.asp?id=362

Is it same code with SK6812 5050 RGB LEDs?
I’m having trouble figuring out how to set them up

2

SK6812 3535 RGBW LED has the same code with SK6812 5050 RGB LED,they both use the same IC,but SK6812 3535 RGBW LED is 4 channel RGB+W,SK6812 5050 RGB is 3 channel.