I am curious as to what size light and the size of your tent?
I also had to deal with excessive heat and humidity at one point, and will tell you that feeding humidity back into the same room that you are also feeding into the tent is not helping with just a humidifier...do you have an air conditioner/ mini-split or centralized AC in your home? If not, maybe investing into a small portable air conditioner for your bedroom, which also dehumidifies, would be a smarter investment. Regardless, with either a single port AC unit or a dual port AC (more efficient) will still require vents to run to the outside, but usually come with a window adaptor to allow it to be portable and removed if you so wish when not needed.
Hot, humid air into tent means hot humid air expelled out of tent, plus the heat of the lights
...and instead of just controlling humidity, you are controlling your environment more consistently, and maybe even more economically, rather than buying and collecting all these smaller dehumidifiers, which is not cutting it.
I purchased a programable combination AC/ heater/ dehumidifier (dual port) on Amazon for just over $400 CDN. This unit also allows me to set my dehumidifier ranges and it collects the water and expels it through an exhaust hose as a mist, meaning I don't even have to empty out any water that is collected from any small dehumidifier (as you do now). Something to consider in this addition, if you so choose, is to look at what you have running on that electrical circuit, as I needed to add an additional circuit to the room, dedicated to the 1230 watts when it kicks in. Just something to consider, or it maybe wise to just grow in periods of the year when you can control your environment easily. Maybe even moving your grow tent to your basement (if you have one) might help a little during this time of the year.