LED lights, cold to warm white?

[heerenleed]

I have bought a number of inexpensive LED-lights at IKEA. Now, I am trying to change their colour which is very cold into a warmer white. Has anyone done this? What do I use. I have tried markers in different colours but the effect is not right yet.
Thanks for any ideas on this subject

cheers

 

[Tomsk]

Find a stage lighting company and buy a sheet of STRAW coloured lighting gel.. works wonders!

 

[savageseadog]

The problem is that the light spectrum of a white LED isn't a nice smooth broad spectrum like real white light. If for instance you were put a red filter on it virtually no light would get through at all as there is no red light energy there. In general terms a filter will just cut the light output to very little.

 

[2Tizwoz]

All you wanted to know about LEDs and probably a lot more /forums/images/graemlins/grin.gif

These people sell warm white lights for boats

 

[pappaecho]

I made up an array of 40 white leds and 10 red ones, which when put through a "normal" lightfilter looks almost exactly the same as the old 10 watt festoon, except that it uses only 1 watt

 

[jb2006]

Or Google "Ultraleds" - however it sounds like you're looking to improve what you have - could add a couple of yellows onto the array (replacing some of the existing leds)

 

[markdj]

The source of the light is the problem. The LEDs are very limited in the light spectrum output therefore using filters will not work. The only way is to add the colour using other LEDs or buy some "warm LED" lights instead.