Red and Yellow lights
It is a strange phenomenon of the light that in the picture I posted below, it looks like the topmost light is yellow. On the other picture you can see that it is actually red, and the middle one is yellow. It must be due to the overload that happens in a photograph. The eye has a much bigger dynamic range, so clear colors retain their clarity as they become brighter, whereas in a photo you can't add more light to them, so you have to add white, and they loose their cleanness of color.