1Up Racing Heatsink Bullet Plugs – 4/5mm Stepped 1UP190437 are designed for optimal power delivery, offering superior heat dissipation and universal compatibility for both 4mm and 5mm RC connections.
Their integrated heatsink actively reduces thermal buildup, ensuring stable performance and extending the lifespan of your ESCs and batteries. The innovative 4/5mm stepped design simplifies your setup, providing a single, robust solution for various power systems.

