I just got these, I am not sure if you need to load into the app first but work great with ST. Kasa Smart KL130P4 Smart Bulb, A19, Multicolor, 4 Count https://smile.amazon.com/dp/B0973VWHBD/ref=cm_sw_r_apan_glt_fabc_MSJWHRG523JBB6H49PDN?_encoding=UTF8&psc=1