Background: To evaluate the efficiency and safety of medium power (MP) holmium laser devices in the enucleation of the enlarged prostate (HoLEP) adenomas compared to high power (HP) laser devices. Methods: Based on the device power used, a total of 120 patients were divided randomly into two groups. While patients in Group 1 were treated with a MP device (50 W) at 39.6-W (2.2J / 18Hz ), patients in Group 2 were treated with HP (100W) device at 42W (1.2J / 35Hz). Peri- and postoperative parameters were well evaluated in both groups with an emphasis on enucleation efficiency and hemoglobin decrease in a comparative manner. Results: Peri- and postoperative parameters as well as functional results were similar in the two groups. The median enucleation efficiency (EE) values in Group 1 and Group 2 were 1.15 (IQR: 0.33-2.2) and 1.11 (IQR: 0.4-2.8), respectively (p=0.775). Hemoglobin decrease values in Group 1 and Group 2 were 1.3 (IQR: 0.1-4) and 1.4 (IQR: 0.4-3.1), respectively (p=0.736). Significant improve in the postoperative functional parameters were noted again in both groups. Conclusion: Our results indicate well that similar to the HP laser devices, effective and safe removal of the enlarged prostate adenomas with MP laser devices (50W) is possible without any technical difficulties, even in patients receiving antithrombotic therapy.