There are two differences:1- PoooliPrinter  L1has a 200 dpi resolution and PoooliPrinter  L2instant HD has a 300 dpi resolution. DPI (dots per inch) refers to the physical dot density of an image when it is printed onto paper.2- PoooliPrinter  L1has a 48mm printing width and PoooliPrinter  L2has a 54mm printing width.