The large momentary switch is a nice size for larger displays. It is sturdy, with a solid stop feel when depressed.
The large momentary is also threaded so it can be mounted in a panel. You will want to drill a 1/2-inch hole. The red color is high visibility and both noticeably and inviting to press.
Sometimes we get asked how to add a switch to the wiring in your project. We thought this sketch might help
basically the switch goes to the red wire on the power supply and to the red wire on the lights.