Lasers of class 3B or 4 that are much more powerful, they can be dangerous for example, airline pilots, so its use is regulated and drivers trained to avoid them.
Ama-Lasers eklasi 3B noma i-4 anamandla amakhulu, angaba yingozi ngokwesibonelo, abashayeli bezindiza, ngakho ukusetshenziswa kwawo kulawulwa futhi abashayeli abaqeqeshelwe ukugwema kubo.