Great topic and I loved all the info and videos. I landed on this site searching for "quality of LED light." For me, it's not about the color of the light or the cost of the electricity or the cost of the bulb. It's about the quality of the light. I'm actually happier with halogen than I am with most other types of bulb. I think it is because of the "quality" of the light - most importantly that it produces hard shadows like sunlight does. LEDs and CFLs produce what to me is a terrible fog of nearly shadowless light. If you get a bright enough bulb it will produce shadows but they are fuzzy and indistinct. I just don't want to be in the room with that depressing light. I want to be in a room which closely replicates the long hard shadows of a early summer morning or evening. I'd love to see you do some tests on this quality and it's psychological impact on people vs the foggy CFLs and LEDs. I'm stocking up on Halogens now that they will be sunsetted at the end of the year.
BTW - I have some incancescent light bulbs that have been working 20 years - flicked on a few times a day for a few seconds. When I moved into my house 20 years ago it came with the same light fixture in both bathrooms. Each had 8 clear 40-watt light bulbs. That was 320 watts! Very bright and you could feel the heat from 5 feet away when you turned on the light. Nice in the winter. When the light bulbs started to burn out, I didn't replace them because it was still plenty bright. After about 8 years I replaced the fixture in one bathroom and saved the bulbs that still worked for the other fixture. Guess what? I still have more than 8 of the original light bulbs still working after 20 years!
