As drop-in LED replacements, the PAR 36 covert (IR) light replaces existing PAR 36 configurations using visible light and an IR lens/filter system, and the the PAR 36 overt (visible) light replaces existing PAR 36 incandescent and HID lights. The designs utilize IR LED or white light LED technology, respectively, which provides higher MTBF and low-maintenance operation. The lights use a standard PAR 36 mounting ring, or a custom mount can be provided. The lights are useable in multiple applications including search lights, landing lights, or tailored as taxi lights through the use of an integral lens to provide the horizontal beam spread needed for taxiing.