Lighting for pole barn
#41
Happy Trails, what kinds of fixtures are you comparing?
The LED units I've used have drawn in the range of 1/8th to 1/10th the power for the same amount of light, compared with incandescents, and about half of the power compared to fluorescents.
Just curious why the efficiency levels you've got are so similar.
- Eric
The LED units I've used have drawn in the range of 1/8th to 1/10th the power for the same amount of light, compared with incandescents, and about half of the power compared to fluorescents.
Just curious why the efficiency levels you've got are so similar.
- Eric
The LEDs above produce 14,700 lumens per fixture using 138.929 watts, which gives you 105.809 lumens per watt. Anything over 100 (at this point in time) is very good.
One 32 watt T8 fluorescent tube produce 2,875 lumens, which is 89.8 lumens per watt. Link to an example.
T5 fluorescent tubes are even more efficient than T8s. One 54 watt T5 produces 5,000 lumens, which is 92.59 lumens per watt, but the tubes are much more expensive. Link to an example.
LEDs are a little more efficient than fluorescent tubes, but the significantly higher price requires many years of electrical usage to pay off.
#42
This brings me back around to my initial advice:
Scrounge up some good used fluorescent fixtures to use for a few years, until the price of LEDs has come down more, and then buy LED fixtures, when the price won't break the bank.
- Eric
#43
What is this construction type called? I want a non-wooden building for fire prevention and to be able to stop a falling tree; this might be a solution.
#44
May Have been an IAEI mag. I have a friend who reads both as well and he has a memory. I'll ask him and get back to you.
#45
There are other manufacturers but since it was my first do it yourself metal building and since the distributor is close by I chose their kit
With one other inexperienced helper we erected the 40 x 105 frame in 8 days using a rented extending boom forklift and a scissor lift.
Here's a link to the build progress: http://s819.photobucket.com/user/Sho...?sort=2&page=1
The middle section with the windows and walk door is my 1200 sqft living area
Last edited by dream66; March 15th, 2017 at 05:46 PM.
#47
Rick, thank you for working that out . A big thanks to all that gave me there input, lots of options! Here is what I went with, ordered 6 to start, they are on there way. hope I made a good choice. again thanks to everyone. will post a picture after I get them hung.
http://www.primelights.com/LED-4-Lam...-4SRHBLD72.htm
http://www.primelights.com/LED-4-Lam...-4SRHBLD72.htm
#53
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