Photographic Darkroom Timer

hi it's Jean anybody who knows me knows I'm kind of a photo nut pretty much always had my iPhone 7s plus in my hand but what some of you may not know is they did my own darkroom work about 50 years ago quite a bit of fun I mean a lot of people are getting back into film photography it's a wonderful medium been around for well over 100 years when I was doing mine I realized that the gray lab timers the kind of gold standard of darkroom timers didn't have all the features I wanted in my darkroom timer so I built my own I took a 10 by 10 electrical box and installed three timers 0 to 15 seconds 0 to 60 seconds and 0 to 5 minutes the reason I did the three was I had a more precise scale depending on the length of exposure I needed I installed a little selector switch allows me to pick the one I want and I also installed a dimmer it allows me to adjust the intensity of the light bulb in the