The invention relates to a street lamp with a high-power light-emitting
diode (LED) single polycrystalline
chip die set, which comprises a shell body formed by a back shell and a surface shell, a
light field photomask, a high-power LED single polycrystalline
chip die set,
light scattering lenses, and a heat radiating device provided with an arc-shaped heat radiator and a superconductive
heat pipe, wherein the surface shell is provided with a first window; the
light field photomask is arranged in the first window of the shell body; the
light scattering lenses are
solid core lenses taking the flat bottom surface as the light incidence surface and are arranged in the bottom mouth in the
light field photomask; the flat bottom surfaces of the
light scattering lenses tightly contacts with the
silica gel on the surface of the high-power LED single polycrystalline
chip die set without gap so as to form a batwing rectangular light field distribution curve flux by utilizing a primary
light source; and the heating radiating device is arranged on the hogged part of the back shell. The high-power LED single polycrystalline chip die set is taken as a
light source and is matched with the light field photomask and the single light scattering lens to reach the requirement of the batwing rectangular light field distribution curve flux street lamp by using the primary
light source; the brightness uniformity is enhanced, and the lighting effect is good; the shell body is prepared by adopting
ultraviolet-resistance aging-resistance reinforced and toughened plastics; the weight is greatly reduced; and the street lamp is conveniently installed and safely used.