LittleBee 20A has the performance of rotorgeek esc and in a size smaller than sn20. Now it is available at the most affordable price of USD$14 with free worldwide shipping.
LittleBee 20A 2-4S is the next generation micro ESC. This Little Bee ESCs feature a the latest and fast integrated Silabs processor (F330 MCU) and some of the best components (AOS N-FET) available to provide an ESC that gives excellent free-wheeling and braking capabilities as it is flashed at factory with BLHeli 14.4 and supports Dampening Light and OneShot125.
The Little Bee ESCs supports configuration via your flight controller. You need not unplug the ESC from your drone to configure the ESC and to calibrate. Simply install betaflight (instead of cleanflight) on the flight controller and download the latest BLHeli suite - more instructions here, and you can configure your ESC via USB through your flight controller USB.
Weight: 4g with wires
Continuous Current: 20A
Burst Current (10s) : 30A
BEC output : None (NOTE:
LittleBee 20A have no BEC. You will need a 5V BEC to power your flight controller or radio receiver.)
Battery Wire Color : Black/Red
Programmble : Yes
USB link programmble : Yes
Mosfet : All N channel