APM-1

APM-1 in the cockpit lighting system

The APM-1 is an aircraft panel lighting fitting used to illuminate inscriptions, symbols and markings on light-guide panels, control panels and instrument boards in aircraft cockpits. It provides local backlighting for cockpit labels and operating controls, helping the crew read panel information during night flights, low-light operation and reduced cockpit illumination. The unit is used on airplanes and helicopters where compact, low-voltage incandescent lighting fittings are required for cockpit panel illumination.

Cockpit inscription and marking illumination by APM-1

The main function of the APM-1 is to provide controlled illumination of panel inscriptions and symbols. In aircraft cockpits, many switches, control panels and instrument boards must remain readable without creating glare or distracting the crew. The APM-1 directs light into the light-guide elements of the panel, making the required markings visible. This type of illumination is important during night operation because the crew must identify controls quickly while preserving normal visual orientation in and outside the cockpit.

Red and white light versions of APM-1

The APM-1 is produced in versions with different light colors. The red-light version, APM-1 red / 9S2.424.012-03, is used where night vision adaptation must be preserved. Red lighting reduces the risk of disturbing the crew’s dark adaptation during night flights. The white-light version, APM-1 white / 9S2.424.012-04, provides neutral illumination where standard readable panel lighting is required. When ordering, the required color version should be stated clearly because the red and white versions serve different cockpit lighting purposes.

Lamp and low-voltage operation of APM-1

The APM-1 uses an SM6.3-1.4 aircraft incandescent lamp as its light source. The fitting operates from a low-voltage DC supply not exceeding 5.5 V. This makes it suitable for cockpit panel lighting circuits where brightness is controlled and distributed across multiple small lighting points. The unit is compact and low-power, but correct voltage is important. Excessive voltage may shorten lamp life, while poor contact, wiring damage or incorrect supply can cause dim light or intermittent panel illumination.

Compact construction of the APM-1 fitting

The APM-1 is a very small cockpit lighting component, with dimensions of 16.5 × 40 mm and a weight of only about 14 g. The unit includes a 2-meter lead wire, which allows installation inside panels and connection to the cockpit lighting circuit. Its compact size makes it suitable for dense instrument panels and control consoles where space is limited. During maintenance, technicians normally check the lamp, wire condition, insulation, mounting point, contact quality and correct light output.

Operating environment of APM-1

The APM-1 is designed for aircraft cockpit conditions and operates across a temperature range from −60 °C to +60 °C. This allows it to remain serviceable in cold-start conditions, high-altitude environments and hot cockpit areas. Although the unit is small, it must withstand vibration, temperature changes and long service operation. The assigned resource is specified as 4500 flight hours within 5 years of operation. For replacement, both technical condition and calendar/service limits should be considered.

Application of APM-1 in airplanes and helicopters

The APM-1 is used in cockpit lighting systems of airplanes and helicopters where light-guide panel illumination is installed. It can be fitted in control panels, switch panels, instrument boards and other cockpit areas requiring localized inscription lighting. Exact applicability depends on the aircraft electrical and panel lighting design. Before replacement, the required color, drawing number, lamp type, voltage and acceptance category should be checked against the aircraft maintenance documentation.

Supply and documentation for APM-1

For procurement, the APM-1 should be ordered by full designation and color version: APM-1 red or APM-1 white. It is also useful to specify the drawing number, required acceptance type, condition and documentation. Depending on the order, the unit may be supplied as new, from storage or in another agreed condition. For aviation use, the product passport or manufacturer documentation should confirm designation, version, acceptance and suitability for installation in the cockpit lighting system.

Product Type: Aircraft cockpit panel lighting fitting
Designation: APM-1
Alternative Designation: АПМ-1
Function: Illumination of inscriptions, symbols and markings on light-guide panels and cockpit controls
Application / Where Used: Aircraft and helicopter cockpit lighting systems
System / Installation Area: Cockpit panels, control consoles, instrument boards and light-guide panels
Light Versions: Red light and white light
Red Version: APM-1 red / АПМ-1 кр. / 9S2.424.012-03
White Version: APM-1 white / АПМ-1 бел. / 9S2.424.012-04
Light Source: SM6.3-1.4 aircraft incandescent lamp
Operating Voltage: DC, not more than 5.5 V
Power Consumption: Not less than 1 W
Dimensions: 16.5 × 40 mm
Lead Wire Length: 2 m
Weight: 14 g
Operating Temperature Range: −60 °C to +60 °C
Assigned Resource: 4500 flight hours within 5 years of operation
Technical Documentation: Product passport / manufacturer documentation

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.