Instead of just making a white texture, convert one of the emis to gray scale or black and white then play with the saturation and brightness to achieve a more realistic white texture. Most of the time white lights are more gray in the texture file as it would be way to bright if it was just straight white.
If using paint.net, take the blue emissive, desaturate by 100%, and add a lightness affect of 40.
Comes out great.