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Lamp Removal Tool
LRT Lamp Removal Tool
MB400-X120-4AL1 LED Annunciator Retrofit Lamps SMT Cluster
MB400-X120-4AL1 MB400-X120-4AL1 LED Annunciator Retrofit Lamps SMT Cluster
BB2 Replacement for Westinghouse Minalite
BB2 BB2 Replacement for Westinghouse Minalite
Home > Cold Filament Inrush
 

Cold Filament Inrush

 
When cold, an incandescent filament draws ten times as much current as it does during normal operation. The initial powering of hundreds of incandescent bulbs simultaneously causes significant voltage surges that lead to lamp failures. PowerLine® LED lamps are designed with series resistors to limit the operating current, resulting in no cold filament current variation.