Question about temperature

Why the temperature of my glasses is getting higher after a use for a while?

Getting warm is a normal phenomenon during a long-time operation of the glasses.

If you feel the temperature of the glasses is getting higher, stop using it and wait for a few minutes until the temperature drops.

To make the glasses more compact, they placed most of the chips at the forehead area of the glasses.

ok but using it for 10 min max and its turns off its normal