... 12m 3,Die-casting 4,round pendant luminaire 5years warranty factory lamp low frequency induction series 40-300W round pendant ... Φ470*H300, Φ530*H470MMcharacteristics about lamp luminaire- round pendant lamp factory lamp :1,Lamp housing is made of die-cast aluminum ... induction lamps. ballast and tube like below, widely used as factory lamp low frequency induction series 40-300W round pendant luminaire ...