The LBTEK TEC temperature controller is a high-power-density temperature controller with a rated working load of 12.5A. The system adopts integral separation PID control for temperature regulation, achieving a precision of up to 0.0625°C. The multi-turn potentiometer allows adjustment of the maximum voltage output. The cooling modules operate in a series configuration, which, compared to parallel setups, results in lower current flow through the wires, requiring thinner and more flexible wiring for convenient connections, reduced heat generation, and maximizing the efficiency of the TEC. This temperature controller enables direct parameter adjustments. Once parameters are set and saved, it operates independently. The built-in display allows for parameter configuration and real-time temperature monitoring, ensuring precise temperature control. The TEC temperature controller is widely applicable in various fields, including: laser temperature control, automation equipment temperature regulation, medical device temperature management, high-power temperature control, and ultra-low (high) temperature control applications.