How to address W LEDs on Sengled RGBW Light Strip?

Grabbed a Sengled E1G-G8E RGBW light strip from Amazon. Got it set up in phoscon, works fine for RGB, but I can’t figure out how to use the W LEDs on the strip.

Searching around, it seems changing the color temp will activate them, however it’s not visible in phoscon. deconz says it’s in there I think if I’m reading this right.
2024-11-25 07_38_58-deCONZ – Home Assistant — Mozilla Firefox

Another thread suggested to use ZHA, but it looks like that’s not compatible with my raspbee II. Is this thing already defunct?

Hopefully I can get this working, I’d love to load up on these while they are on sale.