A good first step can be to look into their native conditions to understand what sort of 'winter' conditions they might typically experience. I only have primuliflora and I keep it damp (with a low water level in a tray) and room temperature. I don't worry too much about artificial light 'day length', they just get plopped on a shelf (at the right light level for them) and are subject to whatever I'm trying to dial in for the rest of the shelves' inhabitants.
Now, I won't say that I am a warm temperate ping expert. My plants are on more of a winter survive than thrive trajectory. But they pulled through last winter, so I know the care above won't kill them outright. And I hope someone with more experience growing them indoors overwinter can weigh in here.
This is a pretty minimal guide:
https://www.carnivorousplants.org/grow/ ... Pinguicula
This tip suggests 'evenly moist over winter': Southern species from warm temperate zones, will experience winter rest with smaller leaves, rather than full dormancy with a hibernacula. These plants should be kept somewhat cooler and drier, but the soil should remain evenly moist.
https://carnivorousplantnursery.com/blo ... YTHd_YrTpz
Some guidance on primuliflora (which grows in similar habitats to yours):
http://www.pinguicula.org/A_world_of_Pi ... iflora.htm