Multi-functional high-power LED (light-emitting diode) combination lamp

The invention discloses a multi-functional high-power LED (light-emitting diode) combination lamp which is composed of a circuit part and a hardware part, wherein the circuit part comprises a transformer step-down circuit (12) and a rectifier-filter circuit (13); the hardware part comprises a power connecting wire (1), an LED light controller (2), a radiator (3), a line box (4), a shell (5), a base plate (11) and LEDs from top to bottom; the LEDs can emit five kinds of colored lights, namely red light, blue light, far-red light, ultraviolet light and yellow light; the LEDs are arranged in four rings from inside to outside centering on the center of the base plate, and the numbers of the LEDs in the four rings are respectively four, eight, sixteen and twenty-four; and through scientifically collocating with different colored lights, the LEDs are circumferentially arranged at equal intervals. The combination lamp is used for carrying out supplementary lighting on indoor plants, has the characteristics of high light intensity and wide illuminated area, and has the functions of facilitating the growth of stems and leaves of crops, directionally controlling the heights of plants, inducing or inhibiting the flowering of plants, reducing the transmission of diseases and pests, and the like; and by using the combination lamp, the lighting and extinguishing of illumination and the light intensity can be controlled as required, therefore, the combination lamp is energy-saving and accords with the demands of photosynthesis of crops.