Conveniently assembled (light emitting diode) LED lamp

A light emitting diode (LED) lamp, comprising a lamp holder (1), a bulb housing (2), a light source assembly (3), and an electric connection assembly (4), wherein:

• the lamp holder (1) is internally provided with an accommodating cavity (11) for accommodating the electric connection assembly (4);
• the electric connection assembly (4) comprises:
• an intermediate body (41), located in the accommodating cavity (11), provided with a first wire groove (411) for a conductive wire to pass through, and further provided with a first locking position (412), a second locking position (413), and a connection port (414);
• a first connection terminal (42), mounted at the first locking position (412), wherein an upper end of the first connection terminal (42) is provided with a first sharp protrusion (421), the first sharp protrusion (421) pierces into a conductive wire in the first wire groove (411) to form an electric connection, and a lower end of the first connection terminal (42) extends into the connection port (414);
• a second connection terminal (43), mounted at the second locking position (413), wherein an upper end of the second connection terminal (43) is provided with a second sharp protrusion (431), the second sharp protrusion (431) pierces into another conductive wire in the first wire groove (411) to form an electric connection, and a lower end of the second connection terminal (43) extends into the connection port (414);
• the light source assembly (3) is at least provided with a light-emitting light strip (31) and an electric connection plate (32) electrically connected to the light-emitting light strip (31), wherein the electric connection plate (32) is fixed to the connection port (414) by plug-in connection and forms electric connections with the first connection terminal (42) and the second connection terminal (43), wherein:
• an end of each of the first connection terminal (42) and the second connection terminal (43) extending into the connection port (414) is provided with a U-shaped bayonet (422), and the electric connection plate (32) is electrically connected to the U-shaped bayonet (422);
• and
• an opening of the lamp holder (1) is elastic, and when the bulb housing (2) is in close connection to the lamp holder (1), the interior of the lamp holder (1) is sealed to prevent water from entering the lamp holder.