The Castle Creation BEC is a state of the art switch mode regulator specifically designed to meet the need of R/C electric flyers. No more separate, heavy receiver battery pack, no more checking and installing complicated equipment, simple plug to your receiver and you are good to go.
The Castle PRO BEC is intended for use in larger RC cars, electric aircraft, and helis that have high power demands for their radio/servo systems. It is ideal for most electric helis 500-size and larger. It will also work well in larger electric powered RC aircraft and RC crawlers and Monster Trucks that have high-powered servos.
For best results, ensure that the all BECs are installed at least 2" (50mm) away from your receiver and antenna. 
