Ikhanda elikhanyayo lethrekhi liyavumelana nezimo futhi lingazungeziswa ngamadigri angu-360 kwesokunxele nakwesokudla futhi lilungiswe amadigri angu-90 phezulu naphansi ukuze ahlangabezane nokukhanya kwendawo futhi adale amaleveli amaningi okukhanya.