WetCanvas
Home Member Services Content Areas Tools Info Center WC Partners Shop Help
Channels:
Search for:
in:

Welcome to the WetCanvas forums. You are currently viewing our boards as a guest which gives you limited access to view most discussions, articles and access our other FREE features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload your own photos and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please visit our help center.

Go Back   WetCanvas > Explore Media > Acrylics > Partner: North Light Books
User Name
Password
Register Mark Forums Read

Salute to our Partners
WC! Sponsors

Our Sponsors
Reply  
 
Thread Tools Display Modes
  #1   Report Bad Post  
Old 07-17-2012, 11:37 PM
Kirsten Marro Kirsten Marro is offline
New Member
 
Join Date: Jul 2012
Posts: 0
 
Can I run a 12 vdc LED light using 10 vdc?

Can I run a 12 vdc LED light using 10 vdc?
I have a led lamp (Voltage Amp: 12V - .033 AMP) that I want to hook up to a systems that will put off 10V DC. Will this work? What problems will i run into?
Reply With Quote
  #2   Report Bad Post  
Old 08-23-2013, 01:00 AM
opainter's Avatar
opainter opainter is offline
A Local Legend
Illinois
 
Join Date: Dec 2011
Posts: 8,267
 
Hails from United States
Re: Can I run a 12 vdc LED light using 10 vdc?

I don't believe that you would have any problems doing so. The intensity of light from the LED might be a little bit less than it would be at the higher voltage, but I doubt it would be noticeable.

P.S. I don't understand what that has to do with this forum!
__________________
AJ (opainter), C&C always welcome
:::: Helpful links for new users: User Agreement || Reference Images || C&C Suggestions || Color Theory and Mixing (color theory and color selection) || Full List of Forums
:::: Painting Blog with an article now and then
Reply With Quote
  #3   Report Bad Post  
Old 07-17-2015, 01:03 PM
Mike L's Avatar
Mike L Mike L is offline
Enthusiast
Florissant, MO
 
Join Date: May 2015
Posts: 1,584
 
Hails from United States
Re: Can I run a 12 vdc LED light using 10 vdc?

Only until you burn up the power supply. LED's operate within a very narrow and specific voltage range, so that as you decrease the voltage being supplied the amount of current increases through both power supply and LED electronic components. This will destroy your power supply, your LED light and could start a fire in your house.
__________________
Practice religion freely and freedom religiously.
Reply With Quote
  #4   Report Bad Post  
Old 08-29-2015, 08:32 AM
ArtL ArtL is offline
Enthusiast
New York
 
Join Date: Aug 2015
Posts: 1,386
 
Hails from United States
Re: Can I run a 12 vdc LED light using 10 vdc?

Quote:
Originally Posted by Mike L
Only until you burn up the power supply. LED's operate within a very narrow and specific voltage range, so that as you decrease the voltage being supplied the amount of current increases through both power supply and LED electronic components. This will destroy your power supply, your LED light and could start a fire in your house.

Actually, in this case, according to Ohm's Law, the opposite is true. LED's are current limited by resistors to a certain maximum voltage they are designed for. Lower the voltage and you will lower the current. Increasing the voltage will increase the current.

Ohm's Law
V=I*R V=Voltage, I=Current, R=Resistance
or
R=V/I in this case R= 12/.033 -- R=364 ohms. Using this figure lower the voltage and see what happens.

I=V/R I=10/364 -- I=.027 amps of current.

The end result will be lower light output from the LED.
__________________
Art

"Beer is living proof that God loves us and wants us to be happy." ...Benjamin Franklin

Last edited by ArtL : 08-29-2015 at 08:38 AM.
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -4. The time now is 03:10 AM.


© 2014 F+W All rights reserved.