Noob question about LED
#1
Noob question about LED
For my birthday my sister got me some glo podz leds there 2 led pieces with a red and black wire running out of them, i'm going to mount the under the dash but what do i wire them to for power and what switch should i buy so i could turn them on and off when ever i please?
thanks
thanks
#2
#4
Old Guy User…
iTrader: (12)
First, what is the voltage called for ?
A red and blk wire to me indicate 12v dc so you can wire it straight up to 12 volts.
Depending on what you want the LEDs to do will decide what switch you use.
If they are to come on with a sw, any sw you decide will work, then wire to any pwr point that has pwr all the time.
These should draw very low current and not need any HD parts.
Check the current draw just to be safe/
Luck.
A red and blk wire to me indicate 12v dc so you can wire it straight up to 12 volts.
Depending on what you want the LEDs to do will decide what switch you use.
If they are to come on with a sw, any sw you decide will work, then wire to any pwr point that has pwr all the time.
These should draw very low current and not need any HD parts.
Check the current draw just to be safe/
Luck.
Last edited by Scrambler82; 10-29-2011 at 05:35 AM. Reason: spl chk
#6
If the pods he has are designed for 12V then those will already be engineered into the pod. That's why a 12V regulator is a good idea.
#7
That's why I mentioned being certain that they are set up properly... and a 25˘ in-line resistor is ˘heap insurance for a ~$15 part.
#8
A good 12V regulator costs less than 1$.
A regulator will prevent voltage spikes from hitting the diodes where a resistor will only limit current based on the pressure it is fed. Most pods I've installed (100's of them) are already internally limited so that 12V keeps them in the nice flat linear portion of the diodes response curve. The regulator will do a much better job of preventing thermal runaway. Also - this is how the OEMs do it.
#9
True, but I thought this guy was only working on one truck, not hundreds. My mistake... I apologize.
But, since excess current is what destroys a diode (Light Emitting or otherwise), a simple resistor is what will limit the current to a safe value. And as you explained, a resistor is ˘heaper than a regulator and its circuitry, especially when purchased in quantity.
The resistor passes current (in Amperes or milliamperes) based on the VOLTAGE impressed across it; and the voltage in volts multiplied by the current in amperes dissipates power expressed as heat, which is measured in watts.
All automotive electrical systems since the Model T have been controlled by a voltage regulator; in the 1930's the regulation was done manually by adjusting the brush on the generator. Newer cars had automatic regulators on their generators; in the 1960's alternators replaced generators, and shortly afterwards, the regulators were electronic, internal to the alternators. These systems, paralleled with a hefty 12 volt battery together effectively limit the system voltage applied to the fella's Glo-Pod. And if the car's regulator fails, or if the battery gets inadvertently disconnected while the engine is running, the series resistor acts as a passive fail-safe device, protecting the life of the Glo-Pod.
He's not an OEM, just a hobbyist.
But, since excess current is what destroys a diode (Light Emitting or otherwise), a simple resistor is what will limit the current to a safe value. And as you explained, a resistor is ˘heaper than a regulator and its circuitry, especially when purchased in quantity.
A regulator will prevent voltage spikes from hitting the diodes where a resistor will only limit current based on the pressure it is fed. Most pods I've installed (100's of them) are already internally limited so that 12V keeps them in the nice flat linear portion of the diodes response curve. The regulator will do a much better job of preventing thermal runaway.
All automotive electrical systems since the Model T have been controlled by a voltage regulator; in the 1930's the regulation was done manually by adjusting the brush on the generator. Newer cars had automatic regulators on their generators; in the 1960's alternators replaced generators, and shortly afterwards, the regulators were electronic, internal to the alternators. These systems, paralleled with a hefty 12 volt battery together effectively limit the system voltage applied to the fella's Glo-Pod. And if the car's regulator fails, or if the battery gets inadvertently disconnected while the engine is running, the series resistor acts as a passive fail-safe device, protecting the life of the Glo-Pod.
He's not an OEM, just a hobbyist.
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