Hi Frank,
I have not seen any LEDs that extend into that range, I beleve FIR starts at
2000 nm or 2 microns and the furthest I have seen LEDs go is about 1000 nm.
I made a thing that heats rocks to give off fir also, All I did is get a granite
tile and a small heating pad, I put the heating pad on the carpeted floor and
put the granite tile on top of it and set it on low or medium. Viola! a nice FIR
emmiter to put my feet on when its chilly out. I suggest to check under the
heating pad occasionally to see of it is getting too hot. Mine is oK I have it
on all the time 24 hrs a day,


> Hi V, while we are on the subject of colors and wavelength could you
> tell me if it is possible to get FIR with LED's ? It seems that Donna
> Crow sells something that heats rocks and emits FIR heat . All the LED's
> I've seen only go into the NIR wavelength . Thanks, Frank Mc