Feature: 1. Metal Housing: The brushless ESC features a fully CNC machined metal housing that is waterproof and sealed to ensure stable performance 2. IPX8 Waterproof: The underwater thruster ESC is IPX8 waterproof, 50A ESC can be waterproof to 100m underwater, and has a wider range of use 3. Easy to Use: The waterproof brushless ESC can be directly powered, no complicated operation is required, and the novice can adapt 4. Scope of Application: The RC brushless ESC has fine workmanship and high reliability, suitable for internal rotation motors, external rotation motors, underwater propellers 5. Lightweight and Portable: The brushless thruster ESC is small and light, does not take up space, which is easy to store, carry and use Specification: Item Type: Brushless ESC Shell Material: Aluminum Alloy Color: Silver ESC Size: Approx. 80 x 40 x 18mm / 3.1 x 1.6 x 0.7in Installation Hole Distance: Approx. 62mm/2.4in Applicable Voltage: 7.4 to 25.2V (2 to 6S) Continuous Current: 50A Maximum Current: 60A (10 seconds) Waterproof Level: IPX8 Level, Underwater within 100meters Applicable: Inner Rotation Motor, Outer Rotation Motor, Underwater Propeller . Package List: 1 x Brushless ESC Note: Must be cooled by placing the ESC in waterNote that the positive and negative power supplies can not touch water, it will short circuit and burn the ESC