... ,180pcs of SMD3528,900LM300X600,22W,276pcs of SMD3528,1300LM600X600,39W,372pcs of SMD3528,2000LM300X1200,39W,372pcs of SMD3528,2300LM600X1200,74W,744pcs of SMD3528,3900LMMaterialAL6063 Aluminium ... , avoiding any problem of lighting output caused or influenced by single faulty LED· No electrical wave,conforming to CE· Green environmental protection, lead ...