LFSM 26-140-1 (LFL 26-140-1)

Purpose and installation

The lamp-light is used where a defined directional beam is required rather than general cabin illumination. The exact installation depends on the aircraft and light assembly documentation. Before ordering, the complete designation, rated voltage, optical pattern, dimensions and connection arrangement should be checked against the removed lamp and the approved parts data. A similar diameter alone does not confirm interchangeability.

Electrical and light output data

LFSM 26-140-1 is rated for 26 V and 140 W. Published technical tables specify a luminous intensity of 45 kcd and a beam spread of 12° horizontally and 12° vertically. The recorded average operating life is 10 hours. These values distinguish this execution from nearby LFSM and LFL lamp-lights with different voltage, power or optical characteristics.

Construction and identification

The PAR46 envelope has a diameter of 145 mm and an overall length of 95 mm; recorded weight is not more than 0.45 kg. Identification should use the full marking LFSM 26-140-1 or the confirmed alternative LFL 26-140-1. The final “-1” is part of the execution and should not be omitted when comparing documents or requesting a replacement.

Selection and supply

Check the glass, reflector, terminals and marking before installation, and confirm compatibility through the applicable aircraft or lighting-unit documentation. When requesting a quotation, provide the complete part marking, required quantity and any requirements for the passport or accompanying documents. Related lamp-lights shown on this page are provided for catalogue navigation and are not automatically interchangeable.