According to the product information, this Biosun lotion spray is designed to spread quickly, feel light on the skin and not leave a heavy greasy layer. The format itself contributes to this: a spray-lotion covers larger areas faster than a dense cream and can be rubbed in with less friction. It is also described as not leaving a thick white film, which is why it is often chosen by adults who dislike the heavy, chalky feel some high-SPF creams have.
One reason for the comfortable feel is castor oil, which adds an emollient, softening effect and can reduce the sensation of dryness after time outdoors. Vitamin E is included as an antioxidant, and allantoin is there for its soothing, skin-conditioning role. None of these ingredients remove the need to apply enough product; a thin, uneven layer will feel lighter but will not give the stated protection.
Since light is a subjective thing, a patch test is useful if your skin is easily irritated or you usually react to sun products. The product information specifically recommends testing on a small area first for very sensitive or recently exfoliated skin. That test also lets you judge the texture on your own skin before applying it all over the body.