Do a web-search, using a website such as Google, for:
Code:
site:https://www.420magazine.com heath vertical
(Copy and paste that into the search box.)
Then, do a general web search for:
That ought to give you some ideas, and lead to even more. Bare-bulb HID grows are very efficient, because all of the light output heads directly to plants, instead of half of it having to bounce off a reflector first.