Light-emitting diode (LED) lamp capable of transmitting light from side face

The LED lamp comprises a bottom plate, a supporting column is integrally connected to the middle of the top of the bottom plate, a top plate is fixedly installed on the top of the supporting column, an LED lamp strip is fixedly installed on the peripheral face of the supporting column, a light-transmitting cylinder arranged outside the supporting column in a sleeving mode is fixedly installed on the top of the bottom plate, and a light-emitting diode (LED) lamp strip is fixedly installed on the top of the light-transmitting cylinder. A rotating groove is formed in the top plate, a gear ring is rotationally connected into the rotating groove, a rotating shaft is rotationally connected to the bottom of the rotating groove in a penetrating mode, a swing plate is integrally connected to the bottom of the rotating shaft, a gear located in the rotating groove is fixedly installed at the top of the rotating shaft, and the gear is meshed with the gear ring. The rotary knob is rotated, the gaps between the adjacent sw