QX-MOTOR 50A 70A 120A two-way waterproof Brushless ESC with UBEC Speed Controller Support 2-6S Lipo BEC 5.5V/5A for RC Boat

The electric regulator has high performance price ratio, adopts high-performance
and low-power AVR 8-bit ATmega168 Series MCU, and the maximum working frequency
is 20MHz;

• suitable for driving all
  kinds of three-phase brushless motors on the market, especially for remote
  control ship models;
• support the maximum 210K
  erpm speed of brushless motor;
• the starting acceleration
  can be set, the throttle response speed is fast, and has a very stable speed
  regulation linearity, which is suitable for various model ships;
• it has a variety of
  protection functions: low voltage protection, over temperature protection,
  throttle signal loss protection, locked rotor protection, etc. Better protect
  the normal and safe use of the equipment;
• automatically identify
  the number of battery cells, and the low-voltage protection threshold can be
  set to meet personalized requirements;
• good power on safety
  performance: when the power is turned on, the motor will not be started
  immediately regardless of the throttle position of the remote controller;
• cycle menu setting,
  simple operation, compatible with all remote control operation settings and
  support programming card settings;
• built in BEC with
  steering gear, high load power and low power consumption;
• glue filling and
  waterproof, supporting short-term immersion work (please dry it after immersion
  to avoid product damage);
• aluminum alloy water
  cooling and heat dissipation system, which can effectively slow down the
  temperature rise;

QX-Motor
50A marine brushless electric regulator
1. Continuous output current:  50A
2. BEC type:  linear mode
3. BEC output:  5.5v/5a
4. Input:  2-6s Lipo
5. Weight: 107g
6. Inner diameter / outer diameter of water cooling nozzle:  Ф 3.0 /Ф 5.0
7. Dimension (including the length extending out of the water cooling nozzle):
86x38x22mm
8.Application:  suitable for hull with length < 55cm

QX-Motor
70A marine brushless electric regulator
1. Continuous output current: 70A
2. BEC type: linear mode
3. BEC output: 5.5v/5a
4. Input: 2-6s Lipo
5. Weight: 111g
6. Inner diameter / outer diameter of water cooling nozzle: Ф 3.0 /Ф 5.0
7. Dimension (including the length extending out of the water cooling nozzle):
86x38x22mm
8. Application: suitable for hull with length < 70cm

QX-Motor
90A marine brushless electric regulator
1. Continuous output current: 90a
2. BEC type: linear mode
3. BEC output: 5.5v/5a
4. Input: 2-6s Lipo
5. Weight: 118g
6. Inner diameter / outer diameter of water cooling nozzle: Ф 3.0 /Ф 5.0
7. Dimension (including the length extending out of the water cooling nozzle):
86x38x22mm
8. Application: suitable for hull with length < 100cm

QX-Motor
120A marine brushless electric regulator
1. Continuous output current: 120a
2. BEC type: linear mode
3. BEC output: 5.5v/5a
4. Input: 2-6s Lipo
5. Weight: 170g
Inner diameter / outer diameter of water cooling nozzle: Ф 3.0 /Ф 5.0
7. Dimension (including the length extending out of the water cooling nozzle):
113x45x22mm
8. Application: suitable for hull with length < 120cm