A Linear Servo Stabilizer, also known as a rolling contact servo stabilizer, is a type of voltage regulator that uses a servo motor to correct voltage fluctuations. Unlike dimmer-type stabilizers that use a rotating carbon brush, the linear type employs a carbon brush that moves linearly across a coil. This mechanism allows for high-speed correction and fine-tuned voltage regulation, typically with an accuracy of ±1%. It is considered more durable and is built for heavy-duty, continuous loads, making it a popular choice for industrial, commercial, and high-end residential applications. These stabilizers are particularly effective in environments with significant voltage fluctuations, providing superior protection for sensitive and expensive electrical equipment.