ITEM NAME:320A Waterproof Brushed ESC Electronic Speed Controller For RC Car Boat Motor*1.Continuous Output Current: 320A (Forward), 160A (Backward). Continuous Output Current 320A (Forward), 160A (Backward). Note: This ESC uses 3S (12V) and can only bring motors no larger than 380. With 2S (8.4V), it can only bring motors no larger than 540.