The cast light has bright colors, good monochromaticity, soft light, low power, long life, and light-emitting time of up to 50,000 hours. In addition, its LED floodlight lamp body is small, easy to hide or install, not easy to damage, no heat radiation, beneficial to protect the illuminated object, and has a wide range of applications. The lamps are equipped with a scale plate to facilitate adjustment of the illumination angle. The LED floodlight is controlled by a built-in microchip. In small-scale engineering applications, it can be used without a controller, and can achieve gradation, jump, color flashing, random flashing, and gradual alternation. Dynamic effects such as chasing and scanning can also be achieved through DMX control.