Hello,

here are the markings embedded into metal parts of the 0.5 A fuse I use for
1.2 A power supply:

One one end:
500mA 250V

On the other end:

FSL (+ some characters that I cannot reproduce on the keyboard)

Since I purchased this fuse in the package that said Slow-Blow Fuses/0.5 A ,
I assume these are correct markings for that.

Regards,

Zoran