LED Color temp explaination please

[johnmackay70]

I was at home depot today, so I thought I would just take a look at some of their LED options...they had a couple of interesting LED outdoor fixtures that said the color temp of the bulb was around 5800k, that being said, the color of the light coming from the fixtures looked extremely blue

While there I bought a replacement bulb for my track lighting ( a small GU10 bulb) I decided to buy a LED bulb to give it a try - I chose a Philips 3 watt bulb (3x1 watt diodes) - I bought a 3500k bulb so that it would match the other light color in the kitchen.

When I got it home and installed it, this 3500K bulb was also extremely blue in color - absolutely no red or yellow in the light.

Anyone understand why this is?

I am now starting to think about one of the outdoor flood/security fixtures to suppliment my T5 HOs - when I finally get my build going.

 

[carpenter981]

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Edit: EDIT: wrong picture...

Edit: EDIT again: re-read your post....ignore what i posted

 

[johnmackay70]

I understand what the color temps are supposed to be, that is why I purchased the 3500K LED to match the yellow color track lighting which are 3500K halogen)...what is weird is that 3500K LED is extremly blue and no yelow at all while the halogens are extremely yellow, with a little bit of red

 

[ichthyoid]

Below are specra of warm white light above, and a cool white led below. All led's have that big spike around 450 nanometers. That's why no matter what color temp you get, you will have a 'blueish' tint. The higher the color temp, the more blue. There is a long explaination for it, but suffice it to say that 'white' led's have this because they contain phosphors that try to replicate white. This is as close as we can get with current phosphor technology.

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