Review on Easycargo Raspberry Pi 4 Heatsink Kit (Pack of 20) - Aluminum & Copper with 3M 8810 Thermal Conductive Adhesive Tape for Enhanced Cooling of Raspberry Pi 4 B & Raspberry Pi 3 B+ by Tutcht Cobb

I can't fault the look of the radiators. They're good, there are a lot of them, and they're good for various hot Raspberry Pi components. The tape must be thermally conductive. However, before I inserted the heatsinks, the CPU temperature reached 72 °C after a period of stress testing (rpi_tempmon, py -ST 2). After installing the radiators I have 69-71 C. A slight decrease. I was expecting a more significant drop in temperature. Haven't decided yet if it's worth it. Maybe it's better to get a fan or nothing.