Which Airbus models have exterior LED lights? (Taxi, Landing, Rotating Beacon)
The A320NEO has full LED lighting. Check out the below link.
http://utcaerospacesystems.com/cap/systems/Interiors%20Documents/Lighting%20Systems/06%20Anti-Collision%20Lights/06_0010%20LED%20Anti-Collision%20Lighting%20System%20A320.pdf