ITEM NAME:50A 50AMP 2-7S Brushless ESC Speed Control OPTO 5V 3A BEC for RC Aircrafts Description: - 100% Brand new and high quality - Ultra-low impedance PCB board, powerful resistance to current - With battery low voltage protection, overheat protection, throttle signal loss protection and other multiple protection - Throttle stroke can be set, compatible with all remote controls on the market, flight control - Material: Plastic, Electronic components Specification: - Current Level: 50A - Burst Current: 60A - BEC: 5V / 3A - Cells: 2-7S Li-ion/Lipo - Ni-MH/Ni-Cd: 4-12NIMH Size Chart: Size: approx. 6.6 x 3.6cm/2.60 x 1.42inch Package Included: 1 Piece 50A Brushless ESC.1 Piece 50A Brushless ESC. - Current Level: 50A. - BEC: 5V / 3A. - Burst Current: 60A. - Ultra-low impedance PCB board, powerful resistance to current.