The PRO III 8" RCLI/TDZI/REXI light does triple duty as a runway centerline light, a touchdown zone light, or as a rapid exit taxiway light. The RCLI is a bidirectional light, typically clear/clear or clear/red, with two 48 W lamps. The TDZI is a clear unidirectional light, with a 48 W lamp. RCLI /TDZI may be used for any category ICAO, or military runway. The REXI is a yellow unidirectional light primarily used as ground traffic aid on taxiways to alleviate traffic.
