Feature: 1. Simple design, light and compact, easy to carry and use, convenient and practical. 2. Made of aluminum alloy, rubber and electronic components material, with strong toughness, sturdy, durable and long service life. 3. Brushless electronic speed controller ESC with UBEC and UBEC output is 5V/5A. 4. Water cooling fast, good effect, waterproof, adapt to all kinds of climate conditions. 5. With programmable function, plug and play, water‑cooled brushless ESC is suitable for RC boat. Specification: Item Type: 125A Water-cooled ESC Continuous Current: 125A Peak Current: 150A BEC Model: Switch BEC Output: 5V/5A Input: DC4.5-6V Weight: Approx.99g/3.5oz Material: Aluminum Alloy + Rubber + Electronic Components Recommended Batteries: Li-ion/Lipoly2-7s, Ni-MH/Ni-Cd 6-20NIMH Applicable to: RC Ship Model. Package List: 1 x ESC1 x Manual Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.