Amasethi amathathu ama-LED anamandla amakhulu ahlinzeka ngemithombo yokukhanya futhi afakwe imicu yomhlahlandlela wokukhanya enembile;Idizayini evalwe ngokuphelele engangeni manzi, ivikeleke kakhulu futhi inokwethenjelwa;Setha ukukhanya kwendawo bese uvula isignali kokukodwa, okunamandla.