good heat-radiation aluminum LED lamp housing, good design,light ... die-casting process*strong anti-corrosion*good design of heat-radiation*used in hard condition, tunnel, seashore,street* ... LED lamps,lights,bulbs. This metal housing has good heat-conduction, that will protect the LED lamps well, and ... own design and drawings in DWG,pdf,JPEG,stp,step files are available for us.Sample is also available ...