| Features | Instant response™ technology, valleylab instant response™ system, improved performance at lower voltages, cutting, coagulating and bipolar outputs, valleylab REM™ safety, three cut modes, three coag modes, three bipolar modes, CEM™ mode. | Instant response™ technology, valleylab instant response™ technology, cutting, coagulating and bipolar outputs, valleylab REM™ system, two cut modes, two coagulation modes, bipolar mode, include dosage error power monitor and leakage current controller and lower voltage operation. |