Marine Lighting

[BigIan]

i was just wondering how much kelin counts when it comes to marine`s?

whats the diffrence between 10,000k and 14,000k?

 

[ox5477]

i was just wondering how much kelin counts when it comes to marine`s?

whats the diffrence between 10,000k and 14,000k?

Pretty sure those numbers are intensities and spectrums of light. Im not sure 'k' stands for kelvin as 14000 kelvin would melt pretty much everything around it, including you.

EDIT: meant to add, like your avatar

 

[andywg]

If I recall correctly, the Kelvin relates to the frequency of light emitted when something is burning at that temperature.

It certainly relates to the position of the colour on the spectrum, with a higher rating being closer to the blue end and a lower one being towards the red end.

Selecting the colour is pretty much personal choice. The yellower lights (around the 7k mark) give closer light to that emitted by the sun, but make a tank look yellow, so people generally opt for 10k and upwards. The higher the K rating, the closer you come to actinics.

I use a 10k MH with actinics to help supplement the blue to make my reef look more like I would expect it to. Many go for 14k for a bluer look, and I often read of people buying 20k and then coming back down again

And you will forgive me if I do not congratulate somone on choosing the flag of a country responsible for killing over 50 million of its own inhabitants (10 million through genocide) as their avatar.

 

[Matthew5664]

K or Kelvin rating is the colour of light given off from a black body (Physics) at a temperature. Where absolute zero (-273.15°C) is black, 5500K (sun) is white and the hotter you go the bluer it gets.

The unit is named after the Irish physicist and engineer William Thomson

You use the same priciple to mesure the temperature of a star.

 

[SkiFletch]

K or Kelvin rating is the colour of light given off from a black body (Physics) at a temperature. Where absolute zero (-273.15°C) is black, 5500K (sun) is white and the hotter you go the bluer it gets.

The unit is named after the Irish physicist and engineer William Thomson

You use the same priciple to mesure the temperature of a star.

Exactly, in easy terms, "kelvin or K" refers to the way a light source will appear to the human eye. So like matt said, lower K is more white/yellow and higher K is more blue/purple. One thing to remember though is that because of the properties of the phosphors we use to create those kelvin ratings, the higher K you go, the less Photosynthetically Available Radiation (PAR) there is. So as a general "rule of thumb" while 20k really makes colors sparkle, it is not quite as good as 10k at providing PAR for photosynthetic organisms.

 

[ox5477]

And you will forgive me if I do not congratulate somone on choosing the flag of a country responsible for killing over 50 million of its own inhabitants (10 million through genocide) as their avatar.

Didnt say I liked what they did. I know my history and know what happened under that flag, just that I liked the avatar

 

[Lynden]

I've always liked a colour temperature of around 14000K. I also really like the colour one gets when one combines 6500K with actinic. A 'sunset' colour.

 

[BigIan]

Cheers people.
we have a 1400k Mh on our tak asi like the bright clean light it gives off.
I was just wondering how much diffrence the k rating made to the corals ect when they photo synthasize