【IP68】Maytech New 32Bit 300A ESC 60V or 75V Waterproof Electric Speed Controller for Eletric Surfboard Efoil Boat

【IP68】Maytech New 32Bit 300A ESC Waterproof Electric Speed Controller for Eletric Surfboard Efoil Boat ---------------------------------------------------------------------------------------------- Frequently Asked Question:   Do I have to use a water pump if the ESC is air-cooled? This ESC is fully waterproof IP68 rating. If use the ESC directly in water for cooling, then it doesn’t need water pump; If use it in air, then it need water pump for cooling. Here is waterpump link: 12V 30W water pump and DC-DC module for electric surfboard efoil electric boat ESCs/Motors --------------------------------------------------------------------------------------------- Version 1: Model No.: MTSF300A-WP32  Input Voltage: 6-14S Lipo (22.2V-60V) Version 2:  Model No.: MTSF300A-WP32-HV High Voltage Version Input Voltage: 6-18S Lipo (22.2V-75V) With or Without Progcard32 Waterproof Rank: IP68 Cont Current: 300A Peak Current (at 10S): 320A With 5V BEC Weight: 585g Size: 122*62*40mm (150*6