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17 December 2012

RE: [DIY] FYI --- Lumens:

 

don't know if that will ever happen.  Only because appliances still require full voltage draw and builders would have to stock two different

gauges of wiring for homes upping the inventory overhead. 

 

-aki

 

 

From: DoIt_Yourself@yahoogroups.com [mailto:DoIt_Yourself@yahoogroups.com] On Behalf Of Dale S
Sent: Monday, December 17, 2012 9:39 AM
To: DoIt_Yourself@yahoogroups.com
Subject: Re: [DIY] FYI --- Lumens:

 

 

I suspect we will soon see the introduction of special low current wiring and associated sockets just for LED lighting due to the escalating cost of copper.  There is no logical reason to use 12 or 14 gauge wire to power a light that draws a fraction of an amp of current, but the change over will require a special bulb base to insure that the idiots that run loose on the streets don't burn their dwellings down.  There is also the possibility that home lighting might eventually be wired using low voltage as well since led's will operate quite well in the 2 to 24 volt range depending on design and application.

Dale in the Flatlands.

Aki wrote:

 

We've been slowly replacing most of our lights with LEDS as well.  To complicate matters, we have lights that we prefer the ability to dim and dimming

LEDs are still expensive.  Also, earlier LED bulbs were oddly shaped that caused problems with some fixtures.

 

Thankfully, the cost of LED lights are slowly going down and their shapes are becoming more standard "bulb" shaped so they'll fit in lamps with shades

that clip over the bulb or fit in fixtures that allow little room for odd shaped bulbs.

 

I really like the light thrown out by LEDs. They're whiter and throw out a much cleaner light than regular incandescent bulbs and are really great for

places that are either hard to reach (like high ceiling bulbs) or are used for long periods of time.  For example, we had to change out our porch lights at least once a year before we replaced them with LED bulbs and now I can't remember when we last replaced them.

 

-aki

 

 

From: DoIt_Yourself@yahoogroups.com [mailto:DoIt_Yourself@yahoogroups.com] On Behalf Of Dale S
Sent: Monday, December 17, 2012 8:41 AM
To: DoIt_Yourself@yahoogroups.com
Subject: [DIY] FYI --- Lumens:

 

 

Just about the time we get used to one system of measures someone seems compelled to change the rules, and with the introduction of LED lighting Lumens is a value term we now need to get used to.  You can go to Wikipedia if you wish for a technical explanation which will be Greek to most,  but the short explanation at present is that the light normally given off by a 60 watt incandescent bulb is equal to 700 Lumens.  Keep in mind however that the human eye reacts differently to the colors and intensity of different light sources, and LED's are changing and improving almost daily which is further driven by the many cities world wide which are now changing over to LED street lighting because of the unit life and energy savings.
The price is also rapidly dropping and a 40 watt 20,000 hour equivalent can be bought for under $7.00, which if one changes a few at a time is do-able.

On average LED life is rated in thousands of hours with 20,000 seeming to be the starting point.  This does not however mean that the estimated life is when it will quit, but rather the point at which when compared to a new bulb of the same type the human eye can detect a difference in the light intensity or Lumens given off, so for convenience lighting who knows how long they will continue to give usable service.

I have installed several LED's that are wired direct without switches in hallways and entrees and we are quite happy with the results.  It is so nice to walk into my shop or down into the basement for instance and not need to fumble around for a light switch of stumble through to the back door in the dark. 

Incandescent bulbs have long been blamed for fires in closets where clothing an other combustibles can come in contact with a bare bulb.  LEDS are a great substitute for closet lighting because they do not get hot, and might also be considered for drop lights as well since they are also far more rugged than the familiar light bulb which is rapidly going away.

--
Dale in the Flatlands.

 

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