Abstract: Light Emitting Diodes (LED) arrays are made by first applying LED monoliths to a metallic pallet, such as a copper pallet, and then securing the pallets to a substrate in a preferred geometrical arrangement. Because copper is so readily machinable, one is able to produce sizes as required for the geometry of an LED array and because of the rigidity, the problem of the fragile modules is removed since they are part of the pallets.