LED and Fluorescent Lighting Health Hazards

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Ravenvalor

Ravenvalor

Senior Member
Location
Piedmont region of NC
I recommend a lot of LED and fluorescent lighting to customers so when I stumbled upon this researcher who suggests they are unhealthy I was intrigued. I emailed him and asked for published clinical studies but he could not furnish me with much. Does anyone on this forum know of any health hazards associated with LED and fluorescent lighting?

Here are a few links.

https://vimeo.com/137681449
https://vimeo.com/99538837
http://www.photonblog.de/


This is my question to him and his reply about clinical studies.
3. Do you have published clinical studies to corroborate your findings?

I am constantly collecting papers related to these topics when I browse the
medical search engines - what I often do. Sometimes I think, lighties are
not interested in critical aspects, so the lighting community seems to me
quite uninformed with regard to the positive effects of long wavelengths...
The only clinical study I have conducted deals with skin rejuvenation using
near infrared and red light. It was published in a peer reviewed journal,
you can download it here:
http://online.liebertpub.com/doi/pdf/10.1089/pho.2013.3616
Since skin and retina exhibit some similar properties, some conclusions
could be drawn from the skin related findings - but this is not a
scientific approach...
 
iwire

iwire

Moderator
Staff member
Location
Massachusetts
Look at it from another direction.

Given what is currently available for lighting what would we provide if not CFL or LED
 
M

MD84

Senior Member
Location
Stow, Ohio, USA
Imho:


I do like a nice 3000k vs an angry blue 6500k. The blue light can screw with my rhythm after dark.

Fluorescent ballasts are noisy and bother me sometimes. I have two light switches side by side in my kitchen. One controls a 2 lamp T8 fixture and the other controls an incan. I find I much prefer the incan especially in the morning and at night.

I would think that a nice color temp constant current controlled led light would be the best option when considering health concerns. Better yet sourced DC by a battery.
 
Ravenvalor

Ravenvalor

Senior Member
Location
Piedmont region of NC
MD84 said:
Imho:


I do like a nice 3000k vs an angry blue 6500k. The blue light can screw with my rhythm after dark.

Fluorescent ballasts are noisy and bother me sometimes. I have two light switches side by side in my kitchen. One controls a 2 lamp T8 fixture and the other controls an incan. I find I much prefer the incan especially in the morning and at night.

I would think that a nice color temp constant current controlled led light would be the best option when considering health concerns. Better yet sourced DC by a battery.
Click to expand...

The author of the study recommends dc controlled halogen.
 
K8MHZ

K8MHZ

Senior Member
Location
Michigan. It's a beautiful peninsula, I've looked
Occupation
Electrician
Ravenvalor said:
The author of the study recommends dc controlled halogen.
Click to expand...

And the author is sure that the power supply that makes the AC to DC conversion won't produce RFI?

As a ham radio operator, I have found that some of the most offending RFI problems come from switching power supplies used to make DC for stuff like battery chargers.

I wouldn't think the DC power supplies in halogen light fixtures would be any different.
 
Ravenvalor

Ravenvalor

Senior Member
Location
Piedmont region of NC
K8MHZ said:
And the author is sure that the power supply that makes the AC to DC conversion won't produce RFI?

As a ham radio operator, I have found that some of the most offending RFI problems come from switching power supplies used to make DC for stuff like battery chargers.

I wouldn't think the DC power supplies in halogen light fixtures would be any different.
Click to expand...

Thanks for the forewarning. Is there a way to determine whether or not a power supply is going to pose a problem before purchasing one?
 
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