YoCoo UBEC 3A 5V RC Servo BEC for Helicopter Airplane Receiver Servo Power Supply (5V 3A) Output Voltage: 5V / 3A Input: 5.5V-26V (2-6 cells Li-Po battery pack or 5-15 cells Ni-MH battery pack). Lightweight and compact LED indicator light Size: 43 x 17 x 7mm, Weight: 11g