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An LED UV curing lamp is a type of mechanical equipment capable of emitting high-intensity usable ultraviolet radiation. It has been widely applied in industries such as printing, electronics, building materials, and machinery. LED UV curing lamps vary in types and designs depending on the products to be cured, yet they share the same ultimate purpose: to cure UV paints, UV inks, and similar materials.

I. Light Source System
It consists of UV lamps, lamp housings, transformers (ballasts), and capacitors (ignitors). Currently, UV lamps available on the market fall into two categories: high-pressure mercury lamps and metal halide lamps. High-pressure mercury lamps are commonly adopted in domestically manufactured equipment, while a portion of imported equipment uses metal halide lamps.

Selection of UV Lamp Power
(1) The power of a UV lamp refers to the radiant energy of its UV light, also known as penetration capacity. First and foremost, it must meet the requirements of the spectral wavelength and power density absorbed by UV inks (or UV varnishes). If the UV lamp power is insufficient, the products cannot be fully cured, no matter how long the exposure time is or how many times they pass through the UV curing device.

(2) Generally, the power of a UV lamp should satisfy the requirement of 80–120 W/cm². However, higher power will generate greater heat. Therefore, the power should be selected based on the specific cured materials and curing speeds.

(3) The maximum service life of a conventional UV lamp is generally 800–1,000 hours, after which the lamp should be replaced. This is because the intensity of the ultraviolet light emitted by the lamp weakens significantly at this stage, which will compromise the curing effect. In contrast, UV LED lamps equipped with imported chips not only feature stable product quality but also have a lamp bead service life of basically over 200,000 hours.