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.
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Yes, there is a nut and washer on the threaded portion of the light.
This LED assembly uses 10 mA at 12V and 20 mA at 24V.
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.
The AL-1X LEDs are indeed polarity sensitive. The red wire is to be wired to bus voltage and the white wired to ground.