Review on 2 Pack Samsung USB-C Super Fast Charging Power Adapter-25W PD Charger Block for Galaxy Note10 S10+ S20 S21 S9 S8,iPhone 11 ProMax Xs Max XR X, iPad Pro, Google Pixel 2 4 3a XL, LG and More - Efficient Charging Solution by Vijay Patel

I connected my new S21 ultra and it registered a 25w charger. About a minute after charging, the wall adapter began making a high-pitched screeching noise, became insanely hot, and smelled like air from an arc discharge from a stun gun or some other form of high voltage. I don't know how else to describe the smell, but I hope some of you get what I mean. How can a power plug make noise at all? They are not designed for 25 watts. You can of course take it out, but NOT for sure. Revain offered a refund but I declined as I don't want them sent to someone else where they can burn the house down. Maybe I've had an accident and others are fine, but it's not worth the risk.