Jump to content
Search In
  • More options...
Find results that contain...
Find results in...
SquaredLogic

Amps on LEDs

 This is assuming your are using a 12V LED strip and running the fans lower than 12V if you want your fans full speed you can just connect everything to 12V instead.

 

nTvOmRW.png

Recommended Posts

Posted · Original PosterOP

Hello, I have one simple quiestion and that is are amps important when connecting LEDs? I want to connect switches that will turn on or off fans in my case, so when fans are on LEDs should light on. Power should go trought 4 pin molex connector.

Link to post
Share on other sites

if youre powering it through molex theres no need to worry about amps


My sound system costs more than my PC.        Check out my S340 build log "White Heaven"        The "LIGHTCANON" flashlight build log        Project AntiRoll (prototype)        Custom speaker project

Spoiler

Intel i7 4790k | AMD Vega 64 | ASUS Sabertooth Z97 Mark S | Corsair Vengeance Pro 32GB | NZXT S340 | Seasonic Platinum 760 | modded H100i | Coolermaster SK630 White | Logitech MX Master 2S | 2x Samsung 850 Pro 512GB | WD Red 4TB Samsung 58" 4k TV | 2x Behringer NEKKST K8 | BIC Acoustech H-100II | Scarlett 2i4 | 2x AT2020

 

Link to post
Share on other sites

Hello, I have one simple quiestion and that is are amps important when connecting LEDs? I want to connect switches that will turn on or off fans in my case, so when fans are on LEDs should light on. Power should go trought 4 pin molex connector.

 

If your using a 12V LED strip they have resistors built into each strip of LED's so there is no need for any modification except plugging it into 12V in your case I would suggest adding a switch on the GRD line for both the fans and LED which will turn both on or off at the same time.

Link to post
Share on other sites
Posted · Original PosterOP

If your using a 12V LED strip they have resistors built into each strip of LED's so there is no need for any modification except plugging it into 12V in your case I would suggest adding a switch on the GRD line for both the fans and LED which will turn both on or off at the same time.

First thanks for reply. Secodly I would like to connect LED's above the switch. So + from switch (PSU) to + on LED and - on switch to - on LED.

Link to post
Share on other sites

My concern is that I may burn LED's :P

 

First thanks for reply. Secodly I would like to connect LED's above the switch. So + from switch (PSU) to + on LED and - on switch to - on LED.

 

As long as it's not over 12V it's pretty much safe inside a system. As for the switch you don't nee to complete cut off a circuit as in having the switch turn off both + and - leads in the circuit it's convention to place the switch on the + end of the lead to prevent any power form even reaching a device/load, but in your case I assume you want your fans to be on a lower voltage than 12V for silence. So instead placing the switch end on the - lead and cutting the circuit will give you the same result but it allows you to power a both the LED's and fans. I'll draw up a diagram in a min.

Link to post
Share on other sites

My concern is that I may burn LED's :P

It depends on LED strip you are going to use. 

Most of them come with included resistors so you can connect it on 12V directly. If not you will have to calculate resistor value and add it.

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×