Would a Reptile UVB light work to fix yellowing from sun damaged?

So I got some legos along with some other action figures that unfortunately got some sun damage to them. I've done a good amount of research and know letting them sit in the sun while soaking in hydrogen peroxide for multiple hours can potentially fix this, however my problem is I live in an apartment & don't have a safe spot to leave them outside or anything. that being said, I do have some reptiles (crested gecko, leopard gecko, & bearded dragon) & have some spare 5% & 10% UVB...