You can upgrade your Indicating, Position, or Recognition lights to LED's without modification. They fit a standard single contact bayonet indexed sockets (BAY15S). These LED replacement lamps run cooler, last longer and draw less than .2 AMPS. They are RFI free and current controlled. Non-PMA

These 24 volt Green LED lamps are interchangeable with: A7512-24, W1290, 1524, T7512-24, WL1524, WL7512-24, MS25309-7512, AML7512-24, NLI7512-24, UA7512-24, and UA1524.