5x30ml Refill dye ink for HP27 and HP28 cartridges installed in HP Printer Deskjet 3320, 3322, 3420, 3425, FAX 1240 ... Water-based Photo Dye inkjet inks Smell: Normal odor Stability: No setting in 3 years (at normal storage) Temperature: -15C no frozen and 70C no gelling Lightfastness: 5-6 BWS; Waterfastness: 3 (Average); Gasfastness: 4 (Good).