I'm in a 2-season country, dry and wet seasons. I live in a cold place, with temperature averaging to 19 degrees on the wet season and about 25 on dry season.
Last wet season, after a couple of storms, I noticed a couple of lenses has molds in the form of tiny "spider-web like" spots on glass surfaces, (are those even molds?). I was stupid in that I always left my lenses and camera in my work table, without any kind of protection.
I got myself a dry box for my lenses. It is not anything fancy or expensive: just about 150USD generic drybox about 2 feet tall. The thing is, I decided to initially turn it on for 24/7. After about a month, the electric bill went up significantly.
Considering that it's the dry season already and it's mostly sunny, do I need to turn it on 24/7? Do I need to turn it on often when it's rainy and humid and all that stuff?
I have no knowledge of humidity control, mold control for equipment or something like that so any help would be pretty much appreciated.