Used to operate any CL Series electric torque screwdriver. Features built-in circuit controllers for convenience (no external control box is required), and advanced solid state electronics for extended trouble-free service. An externally resettable 4A circuit breaker allows immediate recovery in case of overload. Switchable power output of 20 or 30VDC allows you to run CL Series tools at two different RPM ranges. There are two models to choose from. Model CLT50 will operate any single driver. Model CLT100 can operate two drivers, either individually or simultaneously. Both models have power on/off switch, plug directly into a standard 120VAC outlet, and are UL listed.