xxd HW 30A Amp ESC BEC 5V/3A Brushless Motor Speed Controller Product Specifications: Max Continuous Current: 30A Peak Current: 40A (10 seconds) Voltage: 2 ~ 3S Lipo, 5 ~ 8 NiCd BEC : 5V/3A Color: Yellow Size: 57 x 25 x 8mm Weight: 27g