It is true there is some variance. If you look at the pictures of the saber I just built and sold, you'll notice a green tinge to the blade color. I used a yellow (wheat) colored Lee filter for it, but because of the wavelength of light from the Seoul P4 LED i used in the saber, it came out a very light green. I was really pleased with the color, but thought it odd how the LED changed the filtered light.