LG Pra.L BLL1 Owner's Manual page 46

46 Precautions for use
If the skin tone is VI of Fitzpatrick's Skin Types, using the
device is not recommended
Type Skin tone
I Light, pale, white
II White fair
III Medium white to olive
IV Olive, moderate brown
V Brown, dark brown
VI Black, very dark brown
Reaction to sun exposure
Always burns, never tans
Easily burns, tans poorly
Burns moderately, tans
moderately
Burns somewhat, tans easily
Rarely burns, tans considerably
Never burns, totally pigmented