Combined type LED (light-emitting diode) lamp

The utility model relates to a combined type LED lamp. The combined type LED lamp comprises a polyhedral case, multiple connecting surfaces, an LED, a light-transmitting assembly and an external power supply unit, wherein an accommodating space is formed inside the polyhedral case, and the polyhedral case is also provided with at least one opening, multiple conductive units and at least one supporting unit which are arranged inside the accommodating space; the multiple connecting surfaces are arranged on outer sides of all surfaces of the polyhedral case, and each connecting surface is provided with a conductive module and a combination structure; the LED is arranged at the at least one opening and combined with the at least one supporting unit; the light-transmitting assembly is connected to the at least one opening; and the external power supply unit is electrically connected to one of the connecting surfaces. According to the combined type LED lamp, the combination structures are added on all surfaces of t