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somewhereinusa

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On 1/18/2019 at 12:53 AM, somewhereinusa said:

Playing with walnut and my Shaper Origin.  Bad weather is starting to set in so I'm spending more time in the shop. I just finished some new LED light fixtures.

This is 43" long.

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Detail of fixture.

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Bracket detail.

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Next project is a makeup mirror/station cabinet for DW out of walnut.

D ick

 

Did you modify a 120vac fixture to be 12vdc?  If so, please detail the specifications of the fixture and steps to modify. 

Edited by rossboyer

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49 minutes ago, rossboyer said:

Did you modify a 120vac fixture to be 12vdc?  If so, please detail the specifications of the fixture and steps to modify. 

These aren't fluorescent, they are aluminum channels about 1 inch wide that you put an led strip in.

LED fixture

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The reason I asked is that I just installed 20 LED fixtures in my shop, garage and kitchen which are 120VAC. Some of them are surface mounted. I was considering opening one to see if I could eliminate the electronics that change the 120VAC to probably 12VDC. If I can I would install two 48” fixtures in our motor home to replace the small ceiling fixtures in the living and kitchen area. I had changed those to LEDs a couple of years ago. While there are 4 strips of 6000 LEDs, they still don’t put out enough lumens. 

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On 7/9/2020 at 10:54 AM, rossboyer said:

The reason I asked is that I just installed 20 LED fixtures in my shop, garage and kitchen which are 120VAC. Some of them are surface mounted. I was considering opening one to see if I could eliminate the electronics that change the 120VAC to probably 12VDC. If I can I would install two 48” fixtures in our motor home to replace the small ceiling fixtures in the living and kitchen area. I had changed those to LEDs a couple of years ago. While there are 4 strips of 6000 LEDs, they still don’t put out enough lumens. 

I found on line a 12 inch 12 vdc LED fixture. While they only have three strips of LEDs, the light output is great. I left the current fixtures and connected three of the new fixtures perpendicular to the original. Still have one left because they come two to the package. I may add it to the other ceiling light in the future. 
 

You can find these on Amazon, MIHAZ 108LED 12V for 17.98/2 fixtures. 

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The directions specifically state indoor usage; therefore, while closet would work, engine is subject to road spray etc. 

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6 hours ago, somewhereinusa said:

Made some new LED light fixtures. 

Top left is walnut, right is pine, bottom right is cheap plastic original fixture.

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True craftsman you are! Very nice work detail :wub:

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All led's require about 4 volts DC current therefore you must stack three to become a 12 volt fixture, they will not work on AC current because they are a diode. Any 120 volt LED has an AC to DC converter allow it to work. Just saying so that others may understand what makes them tick. The LED itself can stand some moisture but it is best that they are in a sealed environment, very easy to do since there is such a small amount of heat generated in their structure. One can purchase rolls in 5 meters and make almost any light fixture that is conceivable to ones imagination, just remember that the more LED's within the fixture the brighter the fixture will be. Be sure to remember that the rolls are 12 volt DC so the LED's must be cut in increments of three, the rolls are marked also to let you know where the beginning and ending of each series of three.

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Technically an LED will work on AC voltage if you get the voltage right. Since it is a diode it only lights on every other cycle.

The 12v strip LED's are available in both water proof and non waterproof strips. They make connectors that snap on but, I've had better luck just soldering a wire to the copper pad.  Many of the fixtures I have made use one of the  led boards made to replace automotive lights. One example.

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They already have the resistors needed to make it work with 12V. Just remove the plastic plug and solder wires on.

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Edited by somewhereinusa

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