Catasetum temperature help

[PuiPuiMolcar]

The winter here is approaching from 50 F to consistently around the 40 F at night. I'm not so sure if I should leave my catasetum outside anymore. I plan to put them in my grow tent where the tempt is 65-75, but I'm afraid that will disrupt its dormancy cycle as none of them are fully entering that stage yet. What should I do? most online info say keep them no lower than 50F, but not much say about how low can they handle in winter or during dormancy.