VEVOR 30L Ultrasonic Cleaner, Professional Ultrasonic Cleaner Machine with Knob Control, Stainless Steel Cleaning Machine with Basket and Cleaning Ball, for Watches, Razors, Jewelry, Coins and More

Hello, I am wondering what is the heating and transducer power of this unit, Also I would like to know that info of your other 30L units, as you have 4 on your website and I wanted to know which would be more fitting for cleaning car parts, thank you!