Electronics International Al-1 Blue Chrome Annunciator Light

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Part# 10-04166
MFR Model# AL-1B


The AL-1 makes an excellent indicator light for displaying boost pump on, gear status, power on, flags, etc. Also, it can be used as a remote warning light for any E.I. instrument featuring an external warning line. The AL-1 is more attractive, operates on less power and is smaller than the old fashioned indicator lights.

The AL-1 has a service life of over 1000 times that of incandescent bulbs. Mounts in a 5/16" hole. Size: .4" diameter x 1" depth. Operates on a 12 or 24-volt system. Comes with 32" leads.

E.I. products include all documentation and certifications

California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.

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Please note, Aircraft Spruce'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. Aircraft Spruce 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 these lights come with a jam nut to install them in a 5/16 hole in the instrument panel or how are they installed?

Yes, there is a nut and washer on the threaded portion of the light.

Q: What is the operating current of these leds at 12V and 24V?

This LED assembly uses 10 mA at 12V and 20 mA at 24V.

Q: Do these lights need a resistor or diode to work with a 12V electric boost pump or other load type application?

These have a built-in resistor. They simply need to be wired to bus voltage and ground via switch on either the voltage or ground side.

Q: Are this lights polarity sensitive?

The AL-1X LEDs are indeed polarity sensitive. The red wire is to be wired to bus voltage and the white wired to ground.

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