dehumidifier

I have a 12x12 lung room with a 4x4 and a 4x8 tent in it what kind of dehumidifier should I get? I have 2 already but they don't keep up and often freeze up also thinking of putting a small one in the tent's but can't find one without lights on it what should I get?

One 70 pint should handle it all, they are freezing up because the room is to cool below 70 its common the warmer the room is the better they run.

yea this is my flower room so I try to keep it around 65 because it is always 10 degree's warmer and 10% higher in my tents.