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I am trying to setup my smart home to use motion sensor to

I am trying to setup my smart home to use motion sensor to turn on and off led lights throughout my house. I need to decide how long it should wait without detecting motion to turn off the lights. I am afraid that setting it for too short duration like "5 minutes" will put too much wear and tear to the switch and not really save energy because LED are so efficient that the act of switching them on and off could take more energy than had they been lit for 15 minutes rather than being lit for 5 minutes ....unlit for 5 minutes ...and lit again for 5 minutes ?I think I was told that turning the PC and and off is more wasteful than just letting it turned on, and they may have told me about about over appliances too.Personally even if I don't save energy I like to keep lit only when needed as long as I don't waste energy either by the act of the switch going on and off, or put too much wear and tear on the switch. Of course I don't actually touch it, but there is still some mechanism going on and off in the switch and if that's triggered for 10,000 a year vs 1,000 times a year it still matters no ?

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Kevin

Supervising Electrician

Diploma

4,550 satisfied customers
Ive just been told that the underground line to our outdoor

Ive just been told that the underground line to our outdoor post lamp light is bad and needs to be replaced --very costly!Im thinking of alternatives for a post light. Can you make some recommendations?

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

10,066 satisfied customers
For Z-Wave 3-way switches I think GE should work best If I

for Z-Wave 3-way switches I think GE should work bestIf I am not mistaken I need to get :(1) http://www.homedepot.com/p/GE-Z-Wave-600-Watt-CFL-LED-Indoor-In-Wall-Dimmer-Switch-Almond-White-Paddles-12724/205798443&(2) http://www.homedepot.com/p/GE-Home-Automation-120-VAC-3-Way-Auxiliary-Add-On-Switch-Almond-White-Paddles-12723/205798442And I want to replace all my boxes to metal one Is there a metal box that can be adjusted in such a way to expand it as much as possible based on the available space - meaning ""universal" or "Adjustable" Would this be such one:http://www.homedepot.com/p/4-in-Square-Welded-Box-1-1-2-Deep-with-1-2-and-3-4-in-TKO-s-and-Universal-Bracket-8196/100551666

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George Smith

Vocational, Technical or Trade School

10 satisfied customers
My inverter has a light that is blinking and it says

my inverter has a light that is blinking and it says inter/wet what does that meanJA: I'll do all I can to help. How long have you been dealing with this?Customer: about a monthJA: Do you plan on doing the work yourself?Customer: if i know what is going onJA: Anything else we should know to help you best?Customer: thanks please tell me is going on

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Kevin

Supervising Electrician

Diploma

4,550 satisfied customers
I hhave installed a tru-universal three way dimmer switch.

I hhave installed a tru-universal three way dimmer switch. It works with dimmer and on and off but when off the elv lights flicker.JA: I'll do all I can to help. How long have you been dealing with this?Customer: since I installed it yesterday.JA: Do you plan on doing the work yourself?Customer: yesJA: Anything else we should know to help you best?Customer: I was an electrical contractor and taught electrical contracting for years.JA: How old is the system in question? And have you consulted an electrician yet?Customer: The house is about 14 years old with copper wring and uses grounding wires.

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Kevin

Supervising Electrician

Diploma

4,550 satisfied customers
I have two LED light fixtures on one switch. When I turn off

I have two LED light fixtures on one switch. When I turn off the switch, one of the lights is still very dimly visible, as if it still has five to ten volts of power. The switch is connected to the white incoming power wire. Should it be connected to the black wire instead?

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Kevin

Supervising Electrician

Diploma

4,550 satisfied customers
I am going to make a custom aquarium light. I need it to

I am going to make a custom aquarium light. I need it to have 8 bulbs total. I am going to use 15w led lights that would screw into a normal type light socket. I need a wiring diagram with proper gauges, connections, etc. I do have some background tinkering with fluorescent ballasts but haven't done anything quite like this before. I have the ability to make proper connections, I just need to know how to connect it. This is assuming I just want a set up where when I plug it in, all 8 lights come on, and when I unplug it they all turn off; I'm keeping it simple. Thanks.

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George Smith

Vocational, Technical or Trade School

10 satisfied customers
I replaced a light switch that powered a pantry light. When

I replaced a light switch that powered a pantry light. When I turn power back on, the switch now controls the lights in three adjoining rooms, but nothing in the pantry. Two blacks on a two way switch with a ground wire also screwed on. More information or ideas? Thanks!

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Kevin

Supervising Electrician

Diploma

4,550 satisfied customers
Here's what I'm trying to do: I have an LED module that is

Here's what I'm trying to do:I have an LED module that is 1.8 watts (0.15A). It has 20 gauge stranded wire.I would like to connect 15 of these together by extending the wiring an additional 5 ft. Total wattage of the bundle = 27W (2.25A). I plan on using 18 gauge wire to extend each module by 5 ft. All that wiring will meet at a central point.I would then like to connect that 15-wire bundle to a single 16 gauge wire which will then run an additional 5-10ft and connect into a 12V 5A DC power supply.I also want to create a 45 module bundle (again extending each module with 5 ft of 18 gauge wire) and then connect into an 8A DC supply...QUESTIONS: does this make sense? do I need to make sure the power supply wiring is a certain gauge? Basically, if I can leave this thing running for a good long while without starting a fire that would be great.

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Kevin

Supervising Electrician

Diploma

4,550 satisfied customers
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