So not sure how this happened..

[HaZRaTTy]

Just the case is cracked? How is the electrical inside the case? Did it all get completely fried...

I'm stumped the only thing I could Maaaaaaaaaaaybe think of if it was SUPER hot and cool water got splashed on it but even that doesn't really make sense with plastic.

If the light still works just DIY some sort of case and 12V Phone adapter to a computer fan for cooling.