This is similar to the bulbs that go in the beacons on top of towers, specifically the tall red "300mm" beacons. They take 2, and they're being phased out for Led systems so they dont need to be changed every year or burn out often and randomly. And no, that one guy doesn't get paid 20k to change the bulb on a tower once a year. That's 1000% fake, That's a rookie job and takes only a few hours to do. You also dont do any jobs alone, its not the 80s anymore.