... 4,round pendant luminaire 5years warranty factory lamp low frequency induction series 40-300W round pendant luminaire factory lamp 1, ... ,Lamp housing is made of die-cast aluminum, the surface electrostatic spray with anti-corrosion functions, sturdy and durable.2 ... directly, hig reliability5, Suitable for our HB40-350W round induction lamps, with those advantages, high luminous efficiency,super long ...