Kühlkörper für Vx-Regler und Graupner 2844.1 (approx. 25 ml). Silicone sealant adhesive, and V-series heat-sink. Heat-sink improves cooling of GM speed control output stage (V series). The heat-sink is especially recommended in cars where air circulation is poor, and for speed controls with reverse. It is attached using the silicone adhesive supplied. The silicone can also be used to seal the speed control, and prevent spray and rain entering. It is highly temperature-resistant.