All models are presupported, and some parts have a "light" supported version since some printers can easily print with thin supports (and you save some resin).
Keep in mind that these models are Ghosts, so some parts are very thin and delicate, to give the illusion that the model is floating. So be careful when removing supports!
All models are validated for 0,05LH
L-Presupported means Lighter supports works better with Printers such as Elegoo Mars (LCD screen with longer cure times than 7 seconds)
Presupported is for printers with fast cure time such has 2 seconds. Also using more resin - if your L-Presupported fails, try this one.
Be gentle with removing supports. I suggest removing supports just after washing and before curing (warm water can help you a lot)