Do it. Seriously. CMH is amazing.
You don't get what noon day tropical sun does for you. Do it. They're not that expensive and they are well worth what you will get out of them. Put a goddamn light up that has got CMH bulbs in it.
Years ago I researched the various wave lengths that metal halide and sodium lamps put out and then I came upon CMH. Dramatically different. In those days it was a special mail order catalog item. I bought that s*** before it became popular. It really makes a huge difference.
So while it is a cannabis growing bulb there's a reason for that. It hits all the wavelengths that real sunlight will hit you if you were hanging out on a tropical beach at noon. And that s*** makes a difference when you are simply feeling blah.
Do it.