LEDs replacement idiot lights help

[dukeninja]

Hi guys, I would like to replace the stock idiot lights on my GS450 for some LED equivalent. I've already positioned them where I would like them. My question is: As the LEDs are rated at 12v, do I still need some kind of resistor wired in?

Thanks for the help!
DukeN

 

[ToastyTofu]

yes... they sell the led indicator lights that fit into the bulb socket thingy, you know.

you need math. standard automotive circut runs on 13.4v i think... you need to find the standard forward operating voltage/amperage for said leds and the formula that calculates the resistance needed.

my advice is to stay on the safe side of the operating voltage/amperage ...

good luck

 

[nrcb125]

V=I*R

V - voltage = 13.4V
I - current = check the datasheet for the LED
R - resistance = the value you calculate

Figure out the numbers and solve for R. Hope it works!

 

[AlphaDogChoppers]

Technically, there is no such thing as an LED that operates at 12V. The ones that are rated for 12 V have the current limiting resistor already there. The couple extra volts that a bike runs at is close enough, so LED's "rated" for 12 V will work fine at automotive voltages.

 

[ronnie]

Technically, there is no such thing as an LED that operates at 12V. The ones that are rated for 12 V have the current limiting resistor already there. The couple extra volts that a bike runs at is close enough, so LED's "rated" for 12 V will work fine at automotive voltages.

Was going to say the same thing... Most replacement bulbs come ready to roll man! Plug and play.

 

[AlphaDogChoppers]

He's not working with LED replacements that plug into the old bulb sockets, rather he's using some LED indicator lights that he mounted in drilled holes. (Take a look at the picture in his first post.)

Having said that, yes, the LED replacements that plug into the old bulb sockets are meant for automotive use right from the package.

 

[ronnie]

Ahh I see that now.. Haha :/

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