An electric tool adapted to perform tightening operations where torque is delivered in pulses to tighten a screw joint, the electric tool comprising: an electric motor drivingly connected to an output shaft, wherein the pulses are provided by a hydraulic pulse unit coupled to the electric motor, the hydraulic pulse unit intermittently couples the electric motor via a hydraulic coupling mechanism to the output shaft, or wherein the speed of the electric motor is controlled so that the electric motor is driven in a pulsed manner to provide pulses on the output shaft, the electric tool further comprising a processor; and a memory storing software instructions that, when executed by the processor cause the electrical tool to: - retrieve at least first power level parameter p1 indicating a first power level to be used for torque pulses up to a torque threshold; - retrieve at least a second power level parameter p2 indicating a second power level to be used for torque pulses above the torque threshold; - retrieve the torque threshold indicating the torque up to which the first power level should be used; - control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the first power level p1 until the torque threshold is reached; and - control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the second power level p2. wherein the pulses are provided by a hydraulic pulse unit coupled to the electric motor, the hydraulic pulse unit intermittently couples the electric motor via a hydraulic coupling mechanism to the output shaft, or wherein the speed of the electric motor is controlled so that the electric motor is driven in a pulsed manner to provide pulses on the output shaft, the electric tool further comprising a processor; and a memory storing software instructions that, when executed by the processor cause the electrical tool to: - retrieve at least first power level parameter p1 indicating a first power level to be used for torque pulses up to a torque threshold; - retrieve at least a second power level parameter p2 indicating a second power level to be used for torque pulses above the torque threshold; - retrieve the torque threshold indicating the torque up to which the first power level should be used; - control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the first power level p1 until the torque threshold is reached; and - control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the second power level p2. - retrieve at least first power level parameter p1 indicating a first power level to be used for torque pulses up to a torque threshold; - retrieve at least a second power level parameter p2 indicating a second power level to be used for torque pulses above the torque threshold; - retrieve the torque threshold indicating the torque up to which the first power level should be used; - control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the first power level p1 until the torque threshold is reached; and - control the speed of the electric motor, so that the electric tool provide torque pulses on the output shaft with the second power level p2.