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   sci.electronics.basics      Elementary questions about electronics      72,318 messages   

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   Message 71,503 of 72,318   
   Steve Wolf to All   
   Wattage of rough service incandecent bul   
   12 Jan 20 06:45:55   
   
   From: stevwolf58@gmail.com   
      
   I have build a series load test light. eg. you plug a load in and it runs in   
   series through a lamp, in case there is a short, the lamp takes up the load,   
   so as to not blow a fuse. The lamp you use should be 3 x's the load. eg 20   
   watt load should have a    
   60 watt bulb. this means that you really need a variety of lamps.   
      
   Once finished I realized that getting an incandescent light bulb is not so   
   easy since the government has restricted the manufacture and importation of   
   them. They do still allow a few varieties. One such variety is Rough Service   
   lamps. Im kinda wondering    
   since I assume that a 40W rough service light still uses 40w?  Since that's   
   what is on the packaging. My understanding is that they have thicker   
   filaments, which would draw more wattage. But I think this would just give off   
   less light. I respect the    
   engineers who put the data on the package so I assume that a 40w is still 40   
   watts. It would be wrong to put anything else on the package.   
      
   Of course if I wanted a larger bulb 60w 100w 150w. I'm not sure what to use.   
   Maybe a flood light which I think are still available for 150w.   
      
   Finally, I wonder if I ordered incandescent lamps from Amazon, if they would   
   be stopped at the boarder ???   
      
   Thoughts ??   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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