The IL-6A device is an annunciator lamp controller for aircraft applications. It simplifies the wiring of annunciator lamps by providing a convenient way of profviding the lamp test function and dimming for night operations. It drives up to six incandescent or LED lamps while sensing either active high or active low inputs.
This product is also available fully assembled and tested. See the project page in The Hangar Workshop for the open source documentation.
Technical Summary