Lighting can often serve a very specific purpose that would involve illuminating a specific area, but when it comes to party buses lights are meant to be used in a very different way. A big part of the reason what that is the case has to do with the fact that you would need the lights to boost the mood or otherwise create a mood where there was none. The color of the light can play a huge role in this sort of thing at any given point in time, and if you want a color that will make the vibe really calm and relaxing then we would recommend that you try using blue light as much as possible.
Blue light can be just what you need in order to figure things out for yourself. You can use it to make Philly party bus prices seem a bit more reasonable since it would release both serotonin as well as dopamine into your bloodstream thereby enabling you avoid having to think about anything that stresses you out. Blue light can also help people feel closer to one another since it inspires feelings of affection and attachment, and both of these things are really important for you if you want to feel good about the people that you are with in the party bus.
There are a lot of other lighting options that you could look into as well, but most of them are not going to be nearly as calming as blue tends to be. You should try darker shades of blue since they would be easier on the eyes and would also make a really nice ambiance for people to enjoy.