DIMMER (P/N 1821-1) - As Removed

The 1821-1 is a cockpit lamp dimmer that controls instrument and panel lighting intensity in aircraft electrical systems. This component allows pilots to adjust illumination levels for comfortable visibility during various flight phases and ambient conditions. Installed in the cockpit lighting circuit, it integrates with standard aircraft wiring harnesses and control switches.

The dimmer is referenced for Cessna 560 Citation V applications and similar business jets. Installation should follow the aircraft maintenance manual and applicable wiring diagrams, with electrical work performed per FAA AC 43.13-1B standards. Verify part compatibility with your aircraft's Illustrated Parts Catalog before installation.

What is the DIMMER (P/N 1821-1)?

The 1821-1 is a cockpit lamp dimmer that controls instrument and panel lighting intensity in aircraft electrical systems. This component allows pilots to adjust illumination levels for comfortable visibility during various flight phases and ambient conditions.

Is the 1821-1 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The DIMMER is available in: As Removed. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 1821-1 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 1821-1?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.