... ,and work well TypeFrequencyPowerL*W*H,mmFunctionfixed hole HNE-FP-SP1 20KHz ≤200W 200mm*110mm*50mmSeparated excited generator with frequency adjustable ... and frequency adjustable. Ø5*4Notes: In generator type :HNE-FP-SP1,F means a frequency ,P means a power. P means ... Phase-lock circuitFor example:HNE-40100-SP1 This model is Phase-lock circuit applicable to 40K, 100W ...