1ESC waterproof level up to IP67, can work under water, special designed for RC boat. 2Adopting metal heat conduction technology, the water cooling module has low thermal resistance, which enhances the current resistance of the electrical control. 3Has two operation modes, positive rotation (oneway) and positive and negative rotation (twoway). 4With 8 modes, all brushless motors are well matched, 60A of the constant current. 5Suitable for 23S LiPo / 59 NIMH battery, 6V / 3A of the BEC output switch mode. Condition: 100% Brand New Item Type: ESC Material: Aluminum Alloy + PlasticColor: Black Size: Approx. 60 x 38 x 25mm / 2.4 x 1.5 x 1in (without cable) Continuous Current: 60A Instantaneous Current: 360A (10s) Suitable Battery: 2-3S LiPo / 5-9 ni-Mh battery BEC Output: Switch Mode: 6V / 3A Applicable: RC Boat 1 x ESC 1 x Manual 1 x Fixing Sticker