Patent ID: 8641245

Claim:
An LED lamp comprising: an LED illuminant subassembly; a light transmission protective cover; a heat dissipation substrate having a front and a back opposite to the front; several heat dissipation rods extending from the back of the heat dissipation substrate, with the LED illuminant subassembly comprising a plurality of LEDs and a heat dissipation circuit board separately formed from the heat dissipation substrate, with the LED illuminant subassembly connected to the front of the heat dissipation substrate to conduct heat to several heat dissipation rods disposed on the back of the heat dissipation substrate via the heat dissipation circuit board, with the light transmission protective cover and the heat dissipation substrate sealably connected to form a sealable space covering the LED illuminant subassembly, with the heat dissipation circuit board located intermediate the plurality of LEDs and the heat dissipation substrate, with the plurality of LEDs being opposite to the several heat dissipation rods; a drive subassembly comprising a constant voltage device and a heat dissipation drive circuit board, with the drive subassembly located in the sealable space formed by the light transmission protective cover and the heat dissipation substrate, with the heat dissipation drive circuit board and the heat dissipation substrate connected to conduct heat; and a power protective casing connected to the heat dissipation substrate via a bolt, with the power protective casing sealably contained in a sealing ring of a bottom of the heat dissipation substrate, with the power protective casing containing a power switch subassembly, with an input power cable of the power switch subassembly going through the power protective casing via a sealable cable block and sealed, with the heat dissipation substrate disposed with a ring-type protuberance with a cable orifice, with an output power cable of the power switch subassembly going through the cable orifice of the ring-type protuberance and connected with the constant voltage device, and with the output power cable of the power switch subassembly disposed with a waterproofing sealant.