Interior Voltage Question
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Evolving Member
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Joined: Apr 2006
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From: Seattle, WA / Orlando, FL
Interior Voltage Question
I am about to wire up a new 12V switch with an internal LED inside the cabin of my Evo IX. The switch specs are as follows:
Max Switch Rating: 50mA 24V
LED Rating: 3.3 VDC / 5 VDC / 12 VDC
My question is: Even though the switch LED claims to be rated for 12V, do I need to install a resistor to prevent the LED from burning out? The switch will be getting it's power from a tap off of the radio's power line. I've noticed on my volt meter (which is also tapped from the radio's power line) that my cabin voltage ranges from 12.xx to 13.xx. If I do need to install a resistor, what resistance should I use? Thanks in advance!
Max Switch Rating: 50mA 24V
LED Rating: 3.3 VDC / 5 VDC / 12 VDC
My question is: Even though the switch LED claims to be rated for 12V, do I need to install a resistor to prevent the LED from burning out? The switch will be getting it's power from a tap off of the radio's power line. I've noticed on my volt meter (which is also tapped from the radio's power line) that my cabin voltage ranges from 12.xx to 13.xx. If I do need to install a resistor, what resistance should I use? Thanks in advance!
Thread Starter
Evolving Member
iTrader: (1)
Joined: Apr 2006
Posts: 203
Likes: 0
From: Seattle, WA / Orlando, FL
Okay, I think I've figured out my initial question but now I have a new one. I am trying to figure out if I need to use a relay or not for this switch. Since I will be tapping power from the power line on the radio harness, what rating relay should I be using if the Max Switch Rating is 50mA? I'm unsure as to the total amps that run through that power line. Any help would be greatly appreciated!
