Electrical Problem?

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Old 01-22-08, 02:17 PM
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Electrical Problem?

I live in a fairly new home. Built in 2000 i believe.

We've been here for 4 years and in the last four years we've had a recurring issue with our lights out front. Including both the porch light and the two front lights on the garage.

They seem to continually burn out. In 4 years i'm guessing we've probably put in close to 50 bulbs.

We've tried different brands etc just to rule out quality of the bulb but with out fail i'll look outside and the porch bulb is out.

Any ideas what could be wrong or what i could check to get to the bottom of this? Is this a do it yourself type of thing for a beginner?
 
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Old 01-22-08, 02:37 PM
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Measure the voltage at the fixtures. Try 130 volt bulbs. Try heavy duty bulbs.
 
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Old 01-22-08, 02:47 PM
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Vibration and high voltages are number one killer.

measure the voltage at the light , may be on the high side.

Constant switching is detrimental to a bulbs health as is leaving it on constantly.
 
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Old 01-22-08, 03:09 PM
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Hmm.. well we don't really do the constantly switching but we do turn them on at night and leave them till im up at 6am the next day.

How do i check the voltage at the light?
 
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Old 01-22-08, 03:58 PM
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With a meter of course
 
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Old 01-22-08, 06:22 PM
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The cold weather can be harsh on incandescent bulbs when they are turned on. Are these lights on motion sensors?
 
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Old 01-23-08, 03:00 PM
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No they are just plain ole bulbs on the porch and sconse lighting outside the garage.

Guess I'll be looking for a 'gauge'
 
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Old 01-23-08, 06:11 PM
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Originally Posted by Puncture View Post
Hmm.. well we don't really do the constantly switching but we do turn them on at night and leave them till im up at 6am the next day.

How do i check the voltage at the light?
here the key word leave them on all nite until 06:00.

this is very typical for them run long as 8 to 12 hours ave so here a quick figures

all types of bulbs have rated life marked on the package.

let me pick up a common 60 watt light bulb that have 750 hours life.

8X7= 56 hours a week
12X7 = 84 hours a week

56hours X 4 week = 224 hours
84 hours X 4 week =336 hours

with the 750 hour bulb life it can be anywhere from 0 hours to 750 hours some more longer before burn out

but i will pretty much dail in about 70% of life that where most common time they will fail.

at 750 hours at 70% of life will be about 525 hours so it will last about 2 - 2 1/2 months before it will burn out.

and also if run higher voltage than the lamp stated it will shorten the life as well unless you get one of the Rough service bulb with 130 volt rating it will last much longer that way.

if you leave them all nite all the time my suggest is get a CFL or small HID Luminaire [ only if outside useage ] they will last much longer and use less power also.

Most CFL useally are at 8,000 hours or longer and HID like 50 w HPS [ High pressure soduim ] can last long as 24,000 hours before burn out

i just give you a genral idea what to do next

Merci, Marc
 
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Old 01-23-08, 08:18 PM
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I use CFL outside. They've lasted at least 2 years, and are bright. The only drawback is they take a few minutes to warm up, so if you need to see who's outside you may have to wait.
 
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Old 01-24-08, 11:13 AM
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Wow great information.. thank you!
 
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