BEC Stabilizing Capacitor that prevents the voltage of your receiver from dropping under a correct working level. This smart BEC Stabilizing Capacitor stabilizes the voltage for your receiver and is especially important when running in racing classes that run on a low level of voltage input, such as 4-cell 1:12 class. The new LRP BEC Stabilizing Capacitor works for any receiver on the market, no matter if it�s FM or 2.4GHz, and can be used in either electric or nitro models. Just plug into any open slot on your receiver and you are ready to go!