The PK30d and PKX30d lamps are tungsten quartz halogen with a metal base and two flexible insulated lead wires. The wattages are 45, 65, 100, 150, and 200 watts. Lamp current for the halogen types is 6.6 Ampere. These lamps are used in airfield elevated runway edge, runway taxiway, in-pavement centerline, runway approach, PAPI, and runway signs and distance markers.. These bulbs meet the FAA L-850, L-862S, L-880, L-881, and airfield approach systems.