While Elizer certainly didn't invent the thing, just read the references he cites. He was right that its a pain in the ass to build and that pretty much all sol

While Elizer certainly didn't invent the thing, just read the references he cites. He was right that its a pain in the ass to build and that pretty much all solutions available are no where near bright enough despite claiming otherwise. Expense and heat, which is really just more expense, aren't the only issues though. Assuming the premise that its good for health, another issue is that we do not know if the health effects require us to match the spectrum. Notably the reliable research on the topic I have read have always used number of hours outdoors in sunlight, not some contraption. He thinks it worked for his wife, but someone depressed is very likely to support their loved ones delusions that their personal effortful attempt to help worked, and if that loved one is persistent and persuasive, often delude themselves into thinking that. Either way, it would be a single sample. Research is very much needed, and building such a rig is a fun project and a great way to learn exactly how much effect your house control systems really allow.