The Geekservo 9g 270° Servo (compatible with LEGO) is a kind of actuating motor composed with a DC motor and feedback control loop and generally controlled by PWM. There are mainly two types in the market: Limited rotation servo (angle control focus) and continuous rotation servo (speed control focus).
It has a working voltage of 3.3 to 6 V and a maximum torque of 500g.cm.
1 x Geekservo 9g 270° Servo (compatible with LEGO)
This is a nice and useful servo that it is easy to integrate to your Lego Technic projects / vehicles. Torque is as good as micro servo that we have on the market. It will be used for lock , un-lock driving differential or to change transmission speed build with Lego Technic block.