These lights come in many shapes and sizes. They can be inflated with helium or air. Helium if you want to suspend them over a set with wires, not great in most conditions because of wind. To save on the budget, fill them with air and suspend them with a condor so that they can be clamped into the condor with a net. They come in LED, Tungsten for HMI color temps. They come with side flaps that can help control their light. Favoritesare the tube shaped balloon lights because of the light control options and the size.