It depends on the pigments used. I do lightfastness tests for all my paints and I rate them myself using a scale from I to IV (I being poor, IV being excellent).
Here you have the full list in alphabetical order.
List of lightfastness ratings:DOTCARDS:Pearlescent Mica (PW20) LIV
Arylamide Lemon Yellow (PY3) LIV
Monoazoic Red (PR3) LIII
Dioxacine Pink (PV23) LIII
Ultramarine Blue (PB29) LIV
Indian Blue (PB15) LIV
Pastel Sea (PB15, PW6) LIV
Caraïbes (PG7, PY3, PW20) LIV
Mint Green (PG7, PW6) LIV
Brentonico's Green Earth (PG23) LIV
Midas'Touch (PW20, PY3, PR101) LIV
Tír Na Nóg (PG8, PW20, PY3, PB15:3) LIII
VALENTINE'S COLORHEARTS:Kiss me Pink (PV23, PW6) LIII
Yours (PR3, PR122, PW20) LIII
Lover's Night (PR12, PV23, PW20) LIII
Cocoa Dream (PR101, PG8, PW20) LIII
SPRING PASTELS:Lavender (PV15, PB29, PV23, PW6) LIV
Cerise cream (PR122, PW6, PR102) LIV
Chick yellow (PY3, PW6) LIV
Mint Green (PG7, PW6) LIV
Pastel sea blue (PB15, PW6) LIV
SHIMMERY PAINTSHELLS:Starlight Blue (PB29, PW6, PW20) LIV
Pink Champagne (PW20, PY43, PR102, PV23) LIV
Tír na Nóg (PG8, PW20, PY3, PB15:3) LIII
Midas'Touch (PW20, PY3, PR101) LIV
OTHER COLOURS:
Abyss (PB15:3, PV15, PBk11) LIV
Arylamide Lemon Yellow (PY3) LIV
CyberPink 2022 (PW20) LIII
Dark Burnt Sienna (PR101) LIV
Deep Dusk (PB15:3, PV15, PR101) LIV
Orange Sherbet (PY83, PR3, PW20, gold foil) LI
Orión (PB15, PV19, PB36) LIV
Pink Gold (PV23, PW20, PW6) LIII
Primary Red (PR122, PV23) LIV
Raw Sienna (PBr7) LIV
Sleeping Beauty (PG7, PV23, PW20) LIV
Teide (PBr7, PBk11, PR3) LIII
Ultramarine Blue (PB29) LIV
Unicorn Magic (PW20, PY43, PR102, PV23, blue ink, holographic glitter) LIII
Violet Brown (PV15, PR101, PV23) LIV
Witch Dust (PB29, PW6, PW20) LIV
OBJECTION HEARSAY COLLECTION:Stepped on a bee (N/A, waiting for manufacturer's reply) LI
Mega Pint (PR122, PBk6) LII
Objection Hearsay (PB29, PB27, PBk6) LIII (It contains PB27 Prussian Blue which fades but can recover if put on a dark place for a couple of weeks)
Muffins (PY43, PR102, PBr7) LIV
SEA VIBES SET:Ultramarine Blue (PB29) LIV
Dioxacine Pink (PV23) LIII
Disazo Yellow (PY83) LI
Caraïbes (PW20, PG7, PY3) LIV
Sea Salt (PW20) LIV
Sea Sand (PY43, PR102, PW20) LIV