White LED Light And Its Possible Red Wavelength Spectrum Emission

Discussion in 'Light' started by Mr. God of Cars, Jul 30, 2017.

  1. Mr. God of Cars

    Mr. God of Cars Member

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    Since white light has all the color (at least according to ELI5: Why is it that when you mix all colors of paint you get black, but when you mix all colors of light you get white? • r/explainlikeimfive), then it also must contain the red spectrum of light!? Am I right? If so, then do we really need Red Light Lamps or Red LED Light to be exposed to the beneficial red light we all know is pro-metabolic?

    By the way, is there a 13,5W (or more) red LED light available in Brazil or in virtual market such as Amazon?
     
  2. biggirlkisss

    biggirlkisss Member

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    the leds that are full spectrum the best you can find are 2700k and they produce more blue but yes they have red and orange. The brighter ones like the 100-200 watts one at best at 2700k-3300k which is even more blue. They are 170 dollars too expensive but worth while in comprasion to the light bulbs of incandence.
     
  3. x-ray peat

    x-ray peat Member

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    These images may help. From this image it looks like white LED lights barely gives off any red light as compared to incandescents. It looks like the cool ones also give off a lot of UV which isn't great for you. Ray recommends 200W incandescents because they don't give off that much UV and give off a lot of red light. I personally use that and a 660 nm red led light and a 850 nm IR light. They are all pretty cheap.

    [​IMG]
     
  4. lollipop

    lollipop Guest

    Great image breakdown @x-ray peat. I have kept all of the lights in my place incandescent and have a small red led 660nm. Halogen seems like good way to go when incandescents are not available.
     
  5. biggirlkisss

    biggirlkisss Member

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  6. x-ray peat

    x-ray peat Member

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    Thanks Lisa. You may be right. I can see incandescents being sold like illegal drugs in the near and ignorant future.
     
  7. x-ray peat

    x-ray peat Member

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    Still doesn't look like you are getting a lot of the therapeutic red wavelengths >620 nm and none of the therapeutic near IR wavelengths. Also the clinical trials where done with single wavelength red light or IR light. I am not sure what the effects of so much of the other wavelengths will do to that.
     
  8. biggirlkisss

    biggirlkisss Member

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    then a single red led light with incandence would probably be best.
     
  9. ddjd

    ddjd Member

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    gavin what do you think of these bulbs

    http://www.ikea.com/gb/en/products/...-e27-600-lumen-globe-opal-white-art-00358725/

    heres the specs. but it says theyre 2700 kelvin which is good?

    General
    BRAND NAME IKEA
    MODEL IDENTIFIER LED1552G7
    ENERGY EFFICIENCY CLASS A+
    WEIGHTED ENERGY CONSUMPTION 7 kWh/1000h
    NOMINAL LUMINOUS FLUX 600 lm
    NOMINAL LIFE TIME 15000 h
    NUMBER OF SWITCHING CYCLES 15000 cycles
    COLOUR TEMPERATURE 2700 K
    WARM-UP TIME TO 60% OF THE FULL LIGHT OUTPUT < 1 second
    DIMMABLE No
    LAMP DIMENSIONS 110x60
    LAMP MERCURY CONTENT 0 mg
    WEBSITE TO CONSULT IN CASE OF ACCIDENTAL LAMP BREAKAGE www.ikea.com
    RATED WATTAGE 7 Watt
    RATED LUMINOUS FLUX 600 lm
    RATED LAMP LIFE TIME 15000 h
    LAMP POWER FACTOR 0,5
    LUMEN MAINTENACE FACTOR AT THE END OF THE NOMINAL LIFE 70%
    STARTING TIME 0,3 seconds
    COLOUR RENDERING 80
    INSTRUCTIONS ON HOW TO CLEAN UP LAMP DEBRIS IN CASE OF ACCIDENTAL BREAKAGE www.ikea.com
    RECOMMENDATIONS ON HOW TO DISPOSE OF THE LAMP AT ITS END OF LIFE www.ikea.com
     
  10. lollipop

    lollipop Guest

    @Joeyd based on this chart, I would not want to use LED. I would use incandescent or halogen.
     
  11. biggirlkisss

    biggirlkisss Member

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    the lumens are not bright enough. You can get 100 watt or 200 watt chips that are 660nm or 620-625nm on ebay. The 660nm ones are better but more expensive. You would also need to buy a power supply that does 100 watts or 200 watts a 100 watt led power supply will output 6000-6500 lumens a little bit brighter then a 300 watt bulb which is bright. I have not tried the 100 watt red leds yet its on my do list so I don't know how affective they are. It's great on paper but i dunno for sure. For now I would stick with the 300 watt 130 volt bulbs you can buy phillip ones clear at home depot. It could cost you 170 bucks for two red led 100 watt ones but you will save on the power bulb and produce no blue light.
     
  12. x-ray peat

    x-ray peat Member

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    Its not the lumens when it comes to red lights but rather the power density. For example any more than 5 minutes with my head under my 12 w 660 nm and I get the weirdest drugged out effect. I couldn't even imagine how powerful a 200 W red light would be.

    I would recommend this one as it comes with a handy power density measurement chart
    https://raypeatforum.com/community/...abi-12w-deep-red-660nm-led.19123/#post-257296
     
  13. biggirlkisss

    biggirlkisss Member

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    ive been using 20 watt red led and finding it helpful and you have to work with what they give you on ebay. They measure it by lumens thats how they sell it.
     
  14. x-ray peat

    x-ray peat Member

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    ok just be careful with overdosing. until I figured out what my light was putting out I was using it for way too long. The typical research supported dosage is in the 6j/cm2 range so I am not sure how you go from lumens to that, especially for red light or IR.
     
  15. Daniel11

    Daniel11 Member

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    This chart stops at around 750 nm for the incandescent bulb, its not accurately representing the lights complete spectrum, in reality incandescent bulbs emit only 10% in the visible wavelengths and 90% in the infrared wavelengths, if the chart was expanded we would see much greater degree of infrared wavelengths for incandescent bulbs, this is good for general room lighting but not good for therapeutic uses because it has to much of the infrared spectrum and also because it is not a focused enough light, it may have high wattage but its a round bulb dispersing light in all directions and generates a lot of heat.

    The LED lights designed for therapeutic effects are very focused and you need to hold them very close to the body for best benefits. You would not want to hold a high wattage incandescent bulb close to your skin for very long.

    The strong physiological effects of lights diminish very quickly with distance. The broad dispersion of the incandescence light bulbs make them not a good choice. The original and much of the research on photobiomodulation was done with lasers.

    The high wattage incandescent bulbs will produce and transmit a lot of heat and thats what some may feel the most benefit from, but the light from incandescent bulbs will not have the same positive effect on mitochondrial functioning as the focused LED lights held close to the body and designed for therapeutic use.

    Also having a LED light with multiple visible wavelengths will offer more benefits, as our cells absorb and use different wavelengths in very different ways.

    Thats why i like this light, its has 610 nm ~ 630 nm ~ 670 nm visible wavelengths all in one light.

    https://redlightman.com/product/red-light-device-mini/

    This light is also safe for what i consider the most therapeutic way to use the light; through the open eyes, it offers similar benefits to sun gazing.
     
  16. x-ray peat

    x-ray peat Member

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    That chart was more to show what most white LEDs are missing and I agree that it doesn't tell the whole story with incandescents. This figure may be a bit more helpful.[​IMG]

    I personally stopped using my 300 W incandescent because it was too hot to deal with in the summer. But with that said I think the reason Ray recommends incandescents is because they also give off a good amount of beneficial IR and Red that the Red LEDs don't give off. Lots of ways to approach light therapy.
     
  17. biggirlkisss

    biggirlkisss Member

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    it true that 670nm is best but I cant find chips that do that so 660nm is the way to go.
     
  18. lollipop

    lollipop Guest

    Another great graph image @x-ray peat. Totally clarifying. Thank you :):
     
  19. x-ray peat

    x-ray peat Member

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  20. Daniel11

    Daniel11 Member

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    Thats very helpful, thank you!
     
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