@CuriousB posted this in the lounge this week, if a Zen 77 would work with ELV.
Edit: Maybe not, according to Google
" The compatibility of the Zooz ZEN77 with Electronic Low Voltage (ELV/trailing-edge) loads depends on the hardware version:
- Ver. 1.0 & 2.0 (Discontinued): These versions used MOSFET technology, which is compatible with trailing-edge/ELV dimming.
- Ver. 3.0 & 800 Series (Current): These updated versions switched to TRIAC (leading-edge) technology. While they work with many LED bulbs, they are not designed for true ELV loads and may cause issues with bulbs that strictly require trailing-edge/reverse-phase drivers"