Front Panel LED Qusetion

[mu5tang71]

Ok.... I have a Thermaltake overseer RX-I Case...... I have been Painting it to match my motherbaord Maximus VI Formula... Notice that little blue light in the center that lights up the Thermaltake Logo..... Well I want to change it to RED to go with the theme of the board. It does not do anything but slowly pulses on/off. It is not any kind of indicator light. Just there for looks. but would look better RED!!




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I bought these RED LED's to try and replace the blue light. They are a a perfect match in physical size



but every time I hit it with power it blinks real fast a goes out.. appears to blow the bulb. I am sure I am getting to many volts in this bulb but no sure what voltage bulb to get to make this change work... Any help would be great

[totalrognoob]

I suggest that a multimeter to check what the case led's characteristics are, as well a what the power is like. then try and match the original led in resistance and the like. if someone else has a better idea then go with that.

[Praz]

Are you using a resistor inline with the LED and what voltage are you applying to it? If 5V you need a 150 ohm 1/8W resistor. If 12V use a 560 ohm 1/2W resistor. To decrease the brightness use a larger ohm value.

[mu5tang71]

I was not using any resitor.... I did not even notice that there was a resistor on that wire... Going to try it now

[mu5tang71]

Praz wrote:
Are you using a resistor inline with the LED and what voltage are you applying to it? If 5V you need a 150 ohm 1/8W resistor. If 12V use a 560 ohm 1/2W resistor. To decrease the brightness use a larger ohm value.

Well..... I feel like a dumb ass.... I was trying to hook the light up without the resistor... Just used the one that was hooked up to the original blue light..... Thank you PRAZ

[Praz]

You're welcome. Using that resistor should be fine. The 20mA/2.1V rating is pretty much standard.