You can switch between 350W, 500W high pressure mercury lamp, use of the company’s power supply, power supply can be switched internally use 110V, 220V, inside the box flyeye lens array and a lens optical interface of all quartz material ensures long-term use for several years after the UV light intensity output is not too much to decay. light aperture can be made into 4 “, 5”, 6 “, 8”, 10 “, 12” round, or 4 “, 5”, 6 “, 8” square beam source power and beam intensity by a mercury lamp varies in size and shape to 500W 6 “I-line output intensity NUV round of beam is about 25 ~ 30mW / cm2, the uniformity of plus or minus 5%, half-width parallel light by different light diameter of about 1.5 to 3 degrees. optional light intensity flyback type power supply to the light intensity inside the box detectors do feedback control signal, the light intensity can make a long and stable output light beam with uniform lens array generated in doing pattern transfer exposure can effectively reduce the light diffraction, in order to achieve good graphics resolution, 350W / 500W parallel UV exposure source can be used in semiconductor laboratory, production line of small yellow mass production testing process.