This 5 pack of adjustable DC-DC buck boost converters from MELIFE WORKS is perfect for those in need of reliable and efficient power regulation. With a nominal voltage rating of 6 V and a maximum operating temperature of 70 °C (158 °F), these converters are suitable for both indoor and outdoor use. The plug type is CEE 7/7 and the output voltage rating is 3 V, making it convenient for use with a variety of devices. The converters have a nominal current rating of 1 mA and a nominal power rating of 35 W, with a backup time of 1 minute. The output voltage rating (DC) is also 3 V, making it a versatile option for multiple applications. The installation area is indoor/outdoor, and the brand is DC.