What type of light bulbs? For incandescent bulbs, bulb life can be shortened by a supply voltage that is higher than the rated voltage (even 125V on a 120V lamp will reduce lamp life by almost 40%), excessive vibration, and frequent switching (added stress caused by applying full voltage to a cold filament).
how many electrical contractors does it take to screw in a light bulb?...none, they have their apprentice do it!(and so they should, too). yeah, constantly changing bulbs, too. and i have long thought the govt. let the roads get the way they so that people had to buy new cars, parts, ect.
ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals