Resistors

All Customer Questions

Question

Can these be used to dim the flathead led strips? If so, which would be best to use to dim white flathead led strips? How much do they dim? - by Duke

Answer

These will not really work to dim the flathead led strips.

Question

I'm working on some custom taillights and plan to use 4-6 superflux 4chip yellow LEDs in each taillight for turn signals. What I was wondering was do I need any resistors for them? I will be using a LED Flasher, and I didn't know if I needed the resistors for voltage or to put enough draw on them to allow them to not have the hyper-blink. Thanks - by Stephen (Fort Wayne, Indiana)

Answer

Whether or not you will need resistors depends on the voltage going to the LEDs and how many amps it can handle. To prevent the hyper blinking you use something called a load resistor, which Oznium currently doesn't supply.

Here's an LED calculator to help you figure out what resistor size you need, if you decide you do.

Question

I plan on making some custom turn signals using the "Rigid 5mm LED Dome Light," which resistor or resistors will I need to used so my car won't think the turn signal is out because of the low power draw?

Answer

You would need a specialty resistor that Oznium does not currently supply. Our resistors only lower voltage. You need a load resistor.

Question

I use a neon license frame light and I get lots of engine noise when I listen to the the AM radio. Any suggestions? If resistors are the answer, how are they wired?

Loel Stein
UNIONTOWN, OH

Answer

You have an electrical current too close to your antenna's wire. Resistors will not help.

Question

Is there a way to dim these down to match some crummy 12v lights? I replaced the ones in my Climate Control on the dash of my Corvette and they look great but they outshine the radio now. Suggestions?
Thanks - by Dan (Yakima, WA)

Answer

Yes, you can double-up resistors to dim down LEDs.

Question

If im running say about 20 Super Bright LEDs, how many resistors would i need? - by Eugene (NorCal)

Answer

I would use one resistor for each LED.

Question

I am thinking of wiring these into my 1 watt leds I got from you all. Do i solder these on the possitive side? and should I use both positive terminals in the LED?
I am sealing everything in acrylic and using them in my wheel wells. - by Jason (Spokane Washington)

Answer

Yes, resistors are soldered onto the positive side. Yes, we recommend hooking up both positive terminals.

Question

What resistors do we need for wiring 4 1-Watt star LEDs to the same power source in a car, assuming they are wired together daisy-chain style? - by Allen (SF, CA)

Answer

It would be much better to use an LED driver for that. If you used resistors they would be huge and very inefficient.

Question

How many LEDs can be used for one resistor?

Answer

There is no simple answer. It depends on the size of the resistor, the voltage of the LEDs, your supply voltage, the number of LEDs you want to run in series, the current draw of the LEDs, and the power rating of the resistor. If this is too complicated for you, why not just use pre-wired LEDs that hook up directly to 12 volts?