The ELG-150-C2100DA3Y is a part of Mean Well, a company that manufactures and distributes power supplies, converters, and related products. This particular part is from their ELG-150 series, which is an enclosed type dimming constant voltage (DC) power supply. It is an IP67-rated waterproof unit that is suitable for both indoor and outdoor lighting applications and features a universal AC input range of 100 to 305 volts. The ELG-150-C2100DA3Y provides a maximum output of 150 watts with a variable output voltage of 21 to 36 volts and is protected against short circuits, over load, over temperature, and over voltage. With its built-in dimming function, this Mean Well power supply is ideal for lighting systems where the brightness needs to be controlled. It also meets various regulatory standards, including UL cUL and CE.