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12 Volt Power Supply for Main Shop

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Project by woodbutcherbynight posted 11-08-2020 04:29 PM 1235 views 0 times favorited 9 comments Add to Favorites Watch

Throughout my shop I use 12 volt 30 watt LED task lamps at various machines. They provide alot of concentrated light in a small package. BUT require 12 volts or a wall wart somewhere. As I don’t like the wall warts all over I utilize something many people toss away as junk, old computer power supplies. They don’t mind the long on times and the load from the LED’s is within the tolerance they will take so why not reuse them?

Now they are limited somewhat, you cannot hook up all 20 lamps to one in the shop and expect the power supply to live long. So I have one on the add on side of my shop and then this one in the main shop itself. Both can have 4 lamps attached and running and work just fine.

Internal view. I know many just use butt connectors or wire nuts but I prefer soldered connections. This of course takes time but worth it later.

Used some thin metal I had in scrap bin for making the front plate and side plates. And of course tested the unit before final assembly and install.

Nothing fancy but it works and gets power where I need it for 4 lamps on this side of shop.

-- Live to tell the stories, they sound better that way.





9 comments so far

View SirGareth's profile

SirGareth

133 posts in 3440 days


#1 posted 11-08-2020 05:59 PM

That’s a really cool idea! What jacks did you use for the light connectors… 1/4 inch two pole (mono)?

-- Even if you fall on your face, you are still moving forward. - Tim, Southern California

View woodbutcherbynight's profile

woodbutcherbynight

10387 posts in 3649 days


#2 posted 11-08-2020 06:20 PM


That s a really cool idea! What jacks did you use for the light connectors… 1/4 inch two pole (mono)?

- SirGareth

Thanks!!

used these in the box

https://www.amazon.com/gp/product/B01ERPCV1Y/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

use these for connecting point a to b

https://www.amazon.com/WHonor-Upgraded-Female-Connector-Adapter/dp/B082NZQ53C/ref=sr_1_37?dchild=1&keywords=video+connectors&qid=1604859349&s=electronics&sr=1-37

-- Live to tell the stories, they sound better that way.

View LittleBlackDuck's profile

LittleBlackDuck

8097 posts in 2061 days


#3 posted 11-08-2020 07:52 PM

That’s a neat idea wbbn... I go through more PCs than most people do sanding discs on a dodgy ROS.

As always you offer up hidden gems in your posts… Love that 120 hour a day clock on your wall. Hell that gives you 96 extra hours a day to play around in your workshop… no wonder you have the time to solder everything.

-- If your first cut is too short... Take the second cut from the longer end... LBD

View woodbutcherbynight's profile

woodbutcherbynight

10387 posts in 3649 days


#4 posted 11-08-2020 08:30 PM



That s a neat idea wbbn... I go through more PCs than most people do sanding discs on a dodgy ROS.

As always you offer up hidden gems in your posts… Love that 120 hour a day clock on your wall. Hell that gives you 96 extra hours a day to play around in your workshop… no wonder you have the time to solder everything.

- LittleBlackDuck

-- Live to tell the stories, they sound better that way.

View Jim Jakosh's profile

Jim Jakosh

26778 posts in 4345 days


#5 posted 11-08-2020 09:59 PM

Great idea, Gunny. You could put in a 12V car battery and a solar panel to keep it charges. It would run all the 12V LED light.

It is nice to have a 12V wired at all those spots instead of those transformers all over the place. that would be a good ides when building a new house or shop..have 120 V service and 12 V service run everywhere too!

Cheers, Jim

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View DocSavage45's profile

DocSavage45

9069 posts in 4082 days


#6 posted 11-09-2020 01:09 AM

Saw your post in my email.

Nicely done!

-- Cau Haus Designs, Thomas J. Tieffenbacher

View Mike_in_STL's profile

Mike_in_STL

1443 posts in 1774 days


#7 posted 11-09-2020 02:47 PM

Not exactly the same thing…but I have used computer power supplies for amateur radios. It’s actually pretty impressive how many amps at 12 volts those supplies will provide. 100 watts at HF frequency (1.8 – 50 mHz) and you can run all day long, it’s not a huge tax on the unit.

Currently, I have one being used by my son as a supply for his RC car battery quick charger.

Nice setup too WBBN.

-- Sawdust makes me whole --Mike in STL

View Warren's profile

Warren

29 posts in 1627 days


#8 posted 11-09-2020 03:32 PM

I used a PC power supply to power several shop made LED strip light units in my shop, each is 8’ long and have 3 to 5 LED strip lights. Have woked great for the past two years.

Warren
Minneapolis

View Ocelot's profile

Ocelot

3386 posts in 3878 days


#9 posted 11-09-2020 04:44 PM

Good idea.

-- I intended to be a woodworker, but turned into a tool and lumber collector.

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