The invention discloses a
light emitting diode (LED) spot lamp which comprises a heat radiator, a lamp holder, a large power
chip on board (COB)
light source, a reflection bowl, a lens, a gland and a power supply, wherein the heat radiator comprises a heat radiating body and a heat conduction block; the heat radiating body comprises a shell and a heat radiating fin, the shell is provided with a cavity body, and the shell is provided with a heat radiating groove; the inner wall of the shell is provided with a clamping groove; the heat conduction block is made of red
bronze, the heat conduction block is in
interference fit with a clamping groove in a clamping way, and the upper surface of the heat conduction block is provided with an accommodating cavity; a substrate is in
interference fit with the accommodating cavity in a pressing way, and a support is fixed on the heat conduction block through a lug on the support; and the reflection bowl is provided with a
flange, the
flange is arranged above a step, the lens is arranged on the reflection bowl, the gland is installed on the upper end of the heat radiator and contacted with the lens, and after the gland is installed, and the support squeezes the substrate so that the substrate and the heat conduction block are deformed. By adopting the structure, the heat
radiation effect can be improved, and the fixation reliability of the LED
light source can be improved.