CLAF's semi-potting, fanless AC/DC converter--AEFUH series is ideal for industrial and outdoor occasions with relatively harsh application environments. This series accepts both AC and DC input, and has the advantages of high PF value, 150% peak power, which can be applied at 5000m high altitude. The fanless design and semi-potting design can effectively improve the reliability and reduce the risk of fan failure. Especially the fanless and semi-potted design can effectively improve the product reliability and reduce the risk of fan failure, which can be widely used in industrial control, lighting, electric power, security, communication industry.