Led light colour temperature

[Case140]

Hi Guys,
I fitted led lights on my front mounted liquid fert tank, (easy to fit as load on wiring is so low I could just tap into headlight circuit on my case). Having completed a season drilling in varied conditions I have decided that I hate leds! I find the cold white colour temp is hard on my eyes, and it is very difficult to follow a scribe mark. It is not too bad on ploughing but terrible dd on cover crops. So bad that I find myself turning off the headlights and using only the halogen worklights. Does anybody else find this or is it just my wonky eyes? Is it possible to get agri leds with a simple warmup colour temp glass in the unit? This is readily available in the photography world and I cant see why leds couldnt be manafactured with a warm up glass in the unit instead of the plain glass. Anybody know if such things are available?
(Ps:I think this should be on cars too - I find leds particularly hard to drive against?)

 

[Pheasant Surprise]

Artificial light is not widely understood and LED lights more so as it is monochromatic (one pure wavelength) rather than a much wider spectrum that you get from an incandescent source or from sunlight.

Most folks that are swapping work-lights on tractors, loadall’s or fitting up to sprayers etc are just looking for the biggest raw lumens output figure (usually) for the wattage. However that’s a big mistake.

There is also colour temperature (the wavelength of the light). Warmer/redder colours are lower colour temp (below 3000K) and cooler/blue-er colours are higher colour temperature (above 4000-5000K) on the K or Kelvin scale. Colour temperature is very important, especially if you are personally working in the light.

The other factor consider - and to be honest I’ve not yet come across this in vehicle LED lighting but it is hugely important in the perceived quality of indoor LED and fluoro lighting - is the “CRI” or Colour Rendering Index. This has a huge effect on your perception of colour reproduction and objects when illuminated by artificial light. The higher the CRI and closer it is to 100 the more closely it will mimic natural light.

 

[Case140]

Agree with all above. As a photographer in another life I understand colour temp and quality. I was just keeping it simple....?‍
In my opinion led lights (both car and agri) should be available in a warmer temp as I feel would be a lot easier on our eyes (mine anyway!). Flourescent and most professional lighting is available in different temperatures (although some designers for public buildings and churches havent a clue- try white balancing a video in some of these...but I digress!)
My question. Can I get agri leds in warmer temp?? ?

 

[milton-95]

@UTV Products is the person to ask

And you not the only one who doesn't like Led lights, I think they're way to bright, and just reflect light back, especially if it's dusty... far prefer working good halogen lights.

 

[Case140]

@UTV Products is the person to ask

And you not the only one who doesn't like Led lights, I think they're way to bright, and just reflect light back, especially if it's dusty... far prefer working good halogen lights.

I agree on not liking them as much but I think it is less about brightness as about colour temp (and maybe quality) I cant see why the front glass of leds could not have a colour warm up filter built in to make them more useful. Again maybe my eyes are wonky?

 

[Pheasant Surprise]

I agree on not liking them as much but I think it is less about brightness as about colour temp (and maybe quality) I cant see why the front glass of leds could not have a colour warm up filter built in to make them more useful. Again maybe my eyes are wonky?

I know that Nordic Lights can have various coloured and focused lenses retrofitted. @Graham Smith may wish to comment further.

 

[Graham Smith]

Here a couple of links to some information about LED lights, Colour temperature etc

Lens Colour - NORDIC LIGHTS® - Nordic Lights Ltd.

www.nordiclights.com

Colour Temperature - NORDIC LIGHTS® - Nordic Lights Ltd.

www.nordiclights.com

What LED lights are you using?

 

[Exfarmer]

Can anyone give advice on the right LEDs for fitting in a conservatory specifically to aid plant growth.
And no I am not aiming to grow anything illegal

 

[Case140]

Here a couple of links to some information about LED lights, Colour temperature etc

Lens Colour - NORDIC LIGHTS® - Nordic Lights Ltd.

www.nordiclights.com

Colour Temperature - NORDIC LIGHTS® - Nordic Lights Ltd.

www.nordiclights.com

What LED lights are you using?

Thanks for the link. At least nordic quote the colour temp. Now to find out temp on the ones I have?‍ BUT in general I have not seen any leds that are not that dazzling cold colour....(technical term!)

 

[clbarclay]

High power white LEDs produce a very short wavelength (high temperature) light. A coating is applied to them which extends the wavelength producing lower temperature light, however it is not 100% efficient so the more coating a diode has the lower its output is.

Alas as already mentioned, consumers tend to just compare the headline figures with considering the rest of it so demand is for the brightest LEDs with minimal coating.

You can buy individual high power LEDs with warmer temps, but the cost for a set of them on their own is far higher than what you can buy a cheap complete lamp for.