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This listing includes 1 piece of 4-pin power relay with models HF49FD 012-1H11, HF49FD 024-1H11T and HF49FD 024-1H21GFL, compatible with PA1A-12V and PA1A-24V. It features 5A load capacity, reliable performance and strong anti-interference ability. Widely applied in smart home appliances, power control modules, lighting control and industrial automation equipment. Perfect for repairing or replacing faulty relays in various electronic devices.