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 (up to 20,000 hrs.), 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.