The B0505LS-1W is an electronic part manufactured by RLT and is part of its Power Modules SIP RoHS series. It is a 5V DC voltage, 1W switching power supply module, designed for reliable and economical operation. It has a low profile design and is suitable for space-critical applications. It has a wide input voltage range of 90 to 264V AC, catering to various power requirements. It also has high efficiency, up to 86%, enabling it to deliver high power output with minimal heat buildup. It is also RoHS compliant, ensuring that it conforms to environmental protection regulations. Overall, the B0505LS-1W is an efficient and reliable power supply module, designed for a wide variety of applications.