... fluorescent lamps used for illumination. These lamps use ultraviolet glass, which effectively transfer UV at 253.7nm. ... surface disinfection, water treatment sterilization,water filter, curing system,ozone generator,air purification, food storage and photochemistry reaction.Services : ... Good quality material--quartz glass,long life, ozone type & ozone free typeShape: Straight,U-shape,pen-shape,various ...