Features: 1) power:1 - 16kw 2) diameter:20mm/22.5mm/25mm 3) adopt the ge quartz glass tubing The lamp is designed for UV curing system of coating layers on a wide variety of surfaces including blue prints, paper packages, color prints, furniture, decoration materials, iron containers, and etc. It is also an ideal lighting source for UV solidification in electronic and plate making industry. The spectrum ranges between 350nm and 450nm, with peak value at 365nm.