The SD-500L-12 is a switching power supply manufactured by Mean Well. It is a 12V, 42.5A, 500W (604W peak) unit with an 85-264VAC universal input. With regards to safety, the SD-500L-12 is UL, CUL, TUV, CB, and CE certified, and has OVP/SCP/OPP/OTP/SIP protection. It also has a built-in active PFC circuit for higher power factor and efficiency. The SD-500L-12 is suitable for LED lighting, digital signage, and battery charging applications.