Large and medium-sized vehicles, compatible with 12V and 24V systems. Sequential function tail lamps for trucks. - Size: 50cm x 20cm Full LED for energy saving. When replacing the original lamps, a bulb-out warning light or hyper flash may occur, requiring processing such as resistors. (5 resistors, 50W each, are included as a service.) Custom modifications have been made to allow wiring with crimp terminals, as a special conversion connector is required for installation (see photos). The special connector can be used, but the right-side turn signal wiring needs to be connected using taps or similar methods. Functionality has been confirmed before packaging. Please check the lights within 3 days of arrival. No claims or returns will be accepted after that. Thank you for viewing.