Custom voltage 3.6-16V (more than poking with high voltage) 180-degree servos that support 500-2500us. Board size: 25x9mm. A 3P cable (10 cm long) and a plug design, compact and easy to use. The steering gear is usually 180 degrees, but the remote control can only turn it 90 degrees. Principle: The remote control's PWM output is: 1000-2000us; (At this time, the steering gear can rotate 90 degrees). This device expands it to 500-2500us to achieve the purpose of rotating 180 degrees. Premise: The steering gear can rotate 180 degrees within the range of 500-2500us. Application: Where you want to extend the angle with a remote control, such as (robot arm, homemade sailboat). Note: Some servos meet the limit plate before reaching 180 degrees. Do not perform hard operation and cause the motor to stall. The steering gear reversal is to provide the complementary signal from the steering gear, for example, it is currently 1500, and the motor sets the center position. At this time, if the steering gear is rotated 9 degrees counterclockwise, the signal 1600 should be given, but the reverser changes it to 1400 so that the steering gear is rotated 9 degrees clockwise. Please note that this is the extension of the remote control's angle, which originally controlled 90 degrees, and was expanded to control 180 degrees. It does not directly change the 90-degree steering gear to 180 degrees. This is an important point. Color: as shown. Material: composite material. Package contents: 2 x Expander. Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.