The voltage going into your home constantly changes depending on electrical loads used by you and your neighbors. We strive to keep our voltage within 5 percent of the nominal voltage . The neighbor's power tools may cause your voltage to drop outside of the 5 percent range. If it does, we can make changes in our electrical system to help prevent the problem. Q. My light bulbs last only a few weeks.
Several factors determine how long a light bulb lasts.
These include the voltage rating, the wattage, the manufacturer's rated life of a bulb, how often you use the bulb and unusual voltage conditions. So, depending on the usage, a bulb may last only a few months. Look in your store for bulbs with a rated life of 1500 hours or try compact fluorescent light bulbs , which last up to 10 times longer and use up to 75 percent less energy. Try bulbs rated for 130 volts instead of 120 volts. The voltage in your house may be somewhat higher than normal, which causes 120 volt light bulbs to burn out quickly.