Incandescent Lamps (A19, A21, PS40)

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Airfield Lamps Figure 26

Part Number MOL Watt Description Lamp Life (hrs) case
LA-116W/230V (A21) 116 230V, A21, screw base. Application: Obstruction light. 8000
LA-12496-1 4.37"(A21) 69 120V, 69A21/TS, screw base, 4.37". Substitution: GE: 17323. 8000
LA-16385 4-3/8"(A21) 50 50A21, 30V(sign) 1000 120
LA-16997 4-7/8"(A21) 60 60A21/B 1000 120
LA-17625 5-1/4"(A21) 150 150A21/RS 1000 60
LA-17960 4-3/8"(A21) 54 60A21/54WM/TS 8000 120
LA-22483-2 4.44"(A21) 116 120V, A21/TS, screw base, 4.44". Application: Obstruction light. Substitution: LH116120GE. 8000
LA-97470 4-7/16"(A19) 40 40A/CL, 24PK, 120V, A19, E26, 4.43"(D=2.375"). Substitution: ATR: 13863, GE: 12311. 1500 120
Airfield Lamps Figure 27

Part Number MOL Watt Description Lamp Life (hrs) case
LA-21950 10-7/16"(PS40) 620 620PS40P, 120V, PS40P. Application: L864 Beacon. Substitution: ADB: 48A0180, HA-LH620120GE, NSN: 6240-00-295-0901. 3000 24
LA-700120 10-7/16"(PS40) 700 700PS40P, 120V
LA-700230 10-7/16"(PS40) 700 700PS40P, 230V 8000

T=Tube. Multiply T# by 1/8" to get diameter.
* Philips (DBA Narva)

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Flight Light stocks lamps for all airport lighting applications: runway, taxiway, approach, helipad, obstruction. We sell only first quality name-brand lamps, including GE, Osram/Sylvania, Philips (DBA Narva) and Amglo.

Lamp Life

Lamp life rating is the point in time when 50% of the tested samples have burned out and 50% still shine.

Lumens, Candlepower, Footcandles

In lighting, the basic unit for the amount of light produced by a light source is called a lumen. As with any unit of measure, the lumen must be related to some physical standard. A candle of specific composition and size serves this purpose and is said to emit one candlepower. If this candle were placed at the center of a sphere having a radius of one foot, one lumen, by definition, would fall on each square foot of the sphere's surface. Since, from geometry, the total surface area of a one-foot radius sphere is 12.57 square feet, there are 12.57 lumens given off by the standard candle. One lumen falling on 1 square foot of a surface produces illumination of one footcandle.

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