Installing stage lights is a challenge both because of the size of the bulbs as well as the height from which they have to be installed. This is especially true with very high lighting, such as is typical of the lighting on stadiums. It takes a qualified technician as well as the related equipment to install and repair stadium lighting.
Lighting fixtures are reached in different ways. For some rises, it is possible to climb a metal ladder to reach the lighting location. For others, the sockets can only be reached using a platform and a mechanical hoist. The good news is that many of these are relatively small, driven by electricity, and can easily travel along footpaths without damaging the floor.
The technician should know how to use all the necessary tools. He should also be securely fastened with a harness and know all the safety protocols. Hire a company that can replace broken lights without any hangups.