Floodlight capable of accurately controlling angle and convenient to rotate

The utility model discloses a floodlight capable of accurately controlling angles and convenient to rotate, which comprises a die-casting lamp body and a rotating support, semicircular grooves for assembly are arranged on two sides of the die-casting lamp body, semicircular holes are arranged in the semicircular grooves, the semicircular holes are distributed in the semicircular grooves at intervals of 10 degrees, and the rotating support is of a U-shaped structure. The two sides of the rotating support are assembled in the semicircular grooves respectively, assembling holes are formed in the two vertical side walls of the rotating support respectively, in the adjusting process, the positioning pin can sequentially pass through the semicircular holes, after the positioning pin reaches a proper angle, the positioning pin is clamped in the semicircular holes, and the included angle between the rotating support and the die-casting lamp body can be fixed; the angle can be accurately controlled, meanwhile, the ori