Outlet adapter to mimic a car battery to power 12V devices

In summary, the conversation discusses the possibility of using a 12vDC wall adapter to power an RGB LED light for a car indoors. It is advised to avoid wiring the adapter directly to the light and to use the provided connector instead. It is also important to ensure that the adapter can output enough power for the light.
  • #1
DagmaarUlereich
6
2
Sorry if this is a very simple question but i have been googling and looking around for a straight anwser but can seem to find a solid answere or draw a solid conclusion from information I've reached. So

I have a rgb led light for a car, the box says input 12vDC.
if I wanted to set these up indoors could I take the entire wire set up photo attached
( includes on off switch, a fuse, input leads and a male coupler that fits into the female coupling of the light controller)
and simply replace it with a 12vDc wall adapter with the appropriate sized coupler?

Also would it be possible or smarter/better to use any 12vDc wall adapter of the appropriate amperage & polarity and remove the coupler and just wire the adapter straight to the Power imput leads?

If either idea is suitable then what should the amperage and polarity of the wall adapter be?
Thank you for letting me post such a question.
And thanks to anyone who chimes in :)
 

Attachments

  • 16824329351372845485629935715409.jpg
    16824329351372845485629935715409.jpg
    30.1 KB · Views: 63
Engineering news on Phys.org
  • #2
Welcome to PF.

DagmaarUlereich said:
Also would it be possible or smarter/better to use any 12vDc wall adapter of the appropriate amperage & polarity and remove the coupler and just wire the adapter straight to the Power imput leads?
Avoid wiring the 12VDC adapter directly to the light. It is easier to identify problems if you can unplug the circuit to test it. The warranty would be void if you wired it without the provided connector.

DagmaarUlereich said:
If either idea is suitable then what should the amperage and polarity of the wall adapter be?
Without more information on current requirement, I would suggest that the adaptor be rated for the same current as the fuse provided.
 
  • Like
Likes hutchphd and DagmaarUlereich
  • #3
Baluncore said:
Welcome to PF.Avoid wiring the 12VDC adapter directly to the light. It is easier to identify problems if you can unplug the circuit to test it. The warranty would be void if you wired it without the provided connector.Without more information on current requirement, I would suggest that the adaptor be rated for the same current as the fuse provided.
Thank you very much for responding.
after reading this i Kinda have the strong urge to face palm myself for even asking, lolbvs I have a big doubts in my own working sense of electronics, so I hope to get over it soon as I gain more experience.
Thanks again !
 
  • #4
DagmaarUlereich said:
I have a big doubts in my own working sense of electronics, so I hope to get over it soon as I gain more experience.
Stay away from mains voltage AC. You do not need to experience that.
 
  • Like
Likes russ_watters and DagmaarUlereich
  • #5
Roger, copy that!
 
  • Like
Likes berkeman
  • #6
I've done this with a big battery and it worked fine. You can go to an auto store and get the reverse socket to plug your light into.

The big question is how much power can your wall adapter output, and is it enough for your light? A cigarette lighter can usually output 150 watts, (12.5 amps at 12 volts) which is a lot more than most wall warts can deliver. As Baluncore says above, check what your light will actually draw and get something a bit bigger.
 
  • Like
Likes phinds
  • #7
Baluncore said:
Without more information on current requirement, I would suggest that the adaptor be rated for the same current as the fuse provided.
Same or greater, not closest match.
 
  • Like
Likes DagmaarUlereich, Algr and phinds

Similar threads

  • Electrical Engineering
Replies
7
Views
16K
  • Electrical Engineering
Replies
4
Views
2K
  • Electrical Engineering
Replies
4
Views
2K
Replies
2
Views
2K
  • DIY Projects
Replies
4
Views
2K
  • Electrical Engineering
Replies
5
Views
80K
  • Electrical Engineering
Replies
1
Views
6K
  • Electrical Engineering
Replies
9
Views
3K
  • Electrical Engineering
Replies
2
Views
2K
Replies
9
Views
10K
Back
Top