This is a two watt Through Hole RoHS regulated switching power module manufactured by HenLv. It has a wide 4.5 to 24 volt input voltage range and dual output voltage ranges of 3.3 and 5 volts. It features synchronous rectification and has a high efficiency of up to 88% that makes it suitable for commercial and industrial applications. The WRS05D05-2W is highly reliable and has short circuit, over temperature, and over voltage protection. It also features high power density and a low standby power consumption which conserves energy. It meets the requirements of IEC/UL/EN60950-1, TUV, and CE, making it safe and reliable for use in a variety of products.