I agree if you want to use fluorescent lamps as grow lights they need to be 2" away from the plants for the UV to have any affect.. On another note there are ballasted fixtures designed for cold weather applications but they are not CFL's..Read the article, its UV, not X-Rays.
Its been known for decades that Flourescent lights put out UV. The long tube flourescents that you sit under at work all day long probably put out much more than your houshold CFLs do, and nobody ever got skin cancer sitting in an office.
Tried CFL's in the fish tank hood and it was lit up like Las Vegas! Not only that but they promoted algae growth.. Went back to incandescent after this.. BTW I have a couple really cool VERY old Edison lamps here rated in candle power with carbon filaments that came from an old electrical warehouse in Newport, R.I... The glass is hand blown.. Very coolI haven't bought a regular incandescent bulb in the past 15 yrs, except for an appliance bulb in the refrigerator. We have several halogen desk lamps and I use them for outdoor flood lamps as well. When we redid the bathroom I went all halogen in there too. I'm welcoming the change. It will drive down costs and I like that there are now bulbs in conventional form factors that are halogen inside.
On the teflon outgassing question, does anyone know if the "yoshi blue" pan has this issue too?
Tried CFL's in the fish tank hood and it was lit up like Las Vegas! Not only that but they promoted algae growth..
These CFL lamps were actually designed for fish tanks but it was way too bright! The fish demanded tiny little sunglasses lol..This is one application I went flourescent too but not cfls - I needed more light. Algae is a result of nutrients in the water (i.e. fish waste) and too much light. I'm sure cfl would be fine if you could get a smaller one with more equivelent output to what you replaced it with. For me I was growing plants in my tank so I needed a lot of light. I actually used T5's with a ballast designed for higher output lights, overdriving the bulbs to get a little bit more light.
The yoshi blue and other ceramic type style pans do advertise they are "non-teflon" but what they use to make them nonstick isn't discussed . I have several ceramic enamel over cast iron pots and stuff can get stuck or burnt on to the bottom. for the most part, I stick to my stainless steel or cast iron.
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