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Part# 2-20-R
MFR Model# 2-20-R
Model No.SizeCut-OutLight ColorPart Number


The UMA EL (Electroluminescent) Light Bezel System replaces instrument post-lights, and is not just a supplemental lighting system. Our system provides a uniform light around the dial of each instrument using a solid-state electro-luminescent element rather than a incandescent bulb. The bezels have a design life of 5,000 operating hours, which provides a low maintenance alternative to post lights.

The system consists of a bezel or "wedge", DC to AC inverter, and a connector kit. The bezel fits over the instrument face, and is available in a variety of configurations to accommodate various adjusting knobs. The bezel mounts either between the instrument face and the panel, or between the panel and the overlay. The bezel is held in place by the instrument mounting screws. The DC to AC inverter provides power for as many as 12 bezels or about 25 sq. inches of lighting. To facilitate installation and maintenance a connector kit is supplied with each bezel.

Bezels are available for 3 1/8" and 2 1/4" instruments. Colors are White, Aviation Green, and red, with white being the only FAA approved color. The PMA is based on a STC for Beechcraft King Air 90s. To assist you in filing a FAA form 337, the approved data package used for the King Air installation is available from UMA, or can be downloaded (See Links Below). Copies of previously issued 337s are available upon request.

* Inverter is required. Must be ordered separately.

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  • Weight 2 1/4" : 0.5 Oz. Housing: ABS Plastic
  • Weight 3 1/8" : 0.6 Oz. Housing: ABS Plastic
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Great system. Love it. I installed this on my CH601 in 2004 and now in my recently purchased RV. Smooth light, dims very well, looks professional. Only possible issue is it does not allow for adjustment of the altimeter (access to the screw). For calibration, I need to remove the altimeter out of the panel.

Michel T
January 1, 2021

These are great lights, just a pity they do not last that long in relation to cost. That said they are easy to fit and work well.

Brent H
August 19, 2020

works perfect great lighting very pleased

Lawrence S
December 19, 2019

We install this product on new Waco aircraft, easy install .

Daniel B
November 17, 2018

Quick delivery of a quality product

Jerry Z
November 10, 2018

These are amazing lights if you need them. The ribbon powering the light will get fragile and crack/fail over time, which is non repairable. Despite this, I wouldn’t fly without them.

Tom S
July 3, 2020


Please note,'s personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Do the 1GO2 connectors come with the UMA Electroluminescent Instrument Light Bezel?

The 1GO2 Light Connector Kit is included with the UMA Electroluminescent Instrument Light Bezel.

Q: What powers the Uma Electroluminescent Instrument Light Bezels and where are the directions for installation?

Installation and Electrical information from the manufacturer is provided in a link in the Overview tab of this page under Mounting Information.

Q: Are the UMA Electroluminescent Instrument lights FAA Approved? Can I use these in a certified Aircraft?

Yes, these lights are FAA/PMA approved for use in certified aircraft.

Q: What is the standard warranty on UMA products?

UMA products are covered by a 1 year warranty.

Q: If the size/shape is right can they be used on instruments from other manufacturers?

Yes, these are FAA PMA and can be used on a number of instruments. They are not exclusive to be used with only UMA instruments?

Q: Are these UMA instrument light bezels dimmable?

Yes, these lights can be dimmed.

Q: Are these bezels priced and sold per instrument light or in a pack?

These are priced and sold individually. Qty1 is 1 bezel for 1 instrument.