This device adopts UVLED environmentally friendly low-temperature light source, which has the advantages of low heat, high energy, low temperature, high efficiency and energy saving, and can achieve rapid curing in 1-3 seconds; Paired with a water-cooled circulation system, the luminous surface maintains low temperature stability even under high power output, significantly delaying light decay and prolonging the service life of the core LED chips; This product has a compact structure and excellent uniformity of the light-emitting surface. It matches the curing process of most UV inks and varnish, and is widely used for printing and curing logos, patterns, and text on the surfaces of metal products such as iron, aluminum, and steel plates. It covers fields such as three piece cans, metal ornaments, home appliance panels, and nameplate labels.