Patent ID: 7455430

Claim:
A lighting device with a multiple layer cooling structure comprising: at least one mounting bracket, each one of the at least one mounting bracket having a front end; a rear end; a side; and multiple shoulders formed at the side of the mounting bracket; at least one light assembly mounted on the front end of the mounting bracket having multiple light emitting diodes; multiple heatsinks stacked on each other, each heatsink having a side, at least one through hole formed through the heatsink and allowing one of the at least one mounting bracket to extend through and engage one of the shoulders to mount the heatsink on a corresponding one of the shoulders of a corresponding one of the at least one mounting bracket, and multiple fins formed on the side of the heatsink and extending up and the side of the heatsink defines a rough surface; a front supporting bracket having multiple wind holes formed through the front supporting bracket; a rear supporting bracket having multiple wind holes formed through the rear supporting bracket and mounted between two heatsinks to support the heatsinks; and a cooling module assembly coupled to one of the multiple heatsinks and including a heatsink having a side surface, a cooling block with steamers mounted on the side surface of the heatsink of the cooling module assembly and a cooling pipe connected to the steamer of the cooling block and having cooling fluid inside and a side contacted with the side surface of the heatsink of the cooling module assembly.