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|Part Number||Description||Application||Substitution||Brand||MOL||Watt||Lamp Life (hrs)||Case|
|LA-14473||45W, 6.6A, Qtz, Q45T4/CL/DCR [discontinued, limited to stock on hand]||L850/2||Flight Light: LA-AL-008-0077||GE Lighting||2-3/8″ (T4)||45||500||12|
T=Tube. Multiply T# by 1/8″ to get diameter.
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 rating is the point in time when 50% of the tested samples have burned out and 50% still shine.
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.