The Economic Analysis of Greenhouse Lighting: Light Emitting Diodes vs. High Intensity Discharge Fixtures User TheSexyChexican, in the advanced cannabis horticulture subreddit, 30 Oct 2016
A good read: "Economic Analysis of Greenhouse Lighting: LED vs. HID Fixtures" User dstz, in the Microgrowery subreddit, 06 Jun 2016
This paper is a little technical, but let me know what you think. User CPLJ, in the Microgrowery subreddit, 11 Jun 2014
This paper can be pretty technical, but let me know what you think. User CPLJ, in the Cannabis Cultivation subreddit, 11 Jun 2014
This paper can be pretty technical, but let me know what you think. User CPLJ, in the Greenhouses subreddit, 11 Jun 2014
This paper can be pretty technical, but let me know what you think. User CPLJ, in the /r/IndoorGarden subreddit, 11 Jun 2014