100% Brand New and Original Hobbywing Skywalker 50A ESC With UBEC (Orignal hobbywing skywalker 50 A ESC ) capability: Continuous current 50A, short-time current 65A (less than 10 seconds); Power input: 2-4s lithium battery pack or 5-12 NiMH / NiCd battery pack; BEC Output: 5V @ 5A (built-in switching regulator mode BEC) 100 Brand new and include Packages: 1x Hobbywing SKYWALKER ESC 50A Build in bec UBEC