This hotendcover has an integated rearblower and three SMD leds. The airflow is close to the nozzle. I designed very low wallthikness to reduce the weight to move for the X axis. The leds are connected to hotendfan and start lightning at 65°C. With the normal rearblower fan I could reduce the noisy radial part fan. For the front part are two versoins. One with text and a blank one.
I printed the front part without text upright with support and brim.