... heat dissipation technology for radiator;7.Aluminum 6063 for resistance to corrosion, seawater, oil and lubricant etc.;8.Acrylic sealing ... which item,which power,how many pcs,which beam angle suitable:1).Dialux to check suitable item; 2).recommend to customer; 3).project done ... degree5).Beam Angle 120/60/70/30 degree available,up to your application 6).Package:carton with 3 times improvement,strong ...