Review on 🌀 Wathai 92mm x 38mm 12V High Airflow Fan with Dual Ball 90mm, High Speed Pressure Cooling Fan - DC by Troy Hamilton

Exactly what I was looking for. I bought and tried a few fans and also one off the shelf because I knew there had to be one in this size range that would be able to cool SSR 40 (I have a bigger one to cool triple 50a) . This little fan is the real deal. I don't even notice or care about the noise, as long as it keeps the SSR cool it's golden. It's also the right size to fit right under the SSR and shrink into the box. Now I can stop buying fans for a while.