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11-08-2010, 06:27 AM
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#1 |
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Member (10 bit)
Join Date: Feb 2007
Location: Alberta, Canada
Posts: 724
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Dimming a bright L.E.D
My new HTPC case has two really bright, blue L.E.D lights on the front: one for power and one for activity. They are too bright for me and I'd like to dim them a bit. I know I have seen threads/references to adding a resistor to these lamps to dim them, but I have no idea how to do that or if it's something a regular "Joe" like me can do somewhat easily. Can anyone advise me on doing something like this?
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11-08-2010, 08:01 AM
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#2 |
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Moderator
Staff
Premium Member
Join Date: Nov 2008
Location: Detroit, MI
Posts: 5,223
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carefully use a sharpie over the led window.
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11-08-2010, 09:34 AM
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#3 |
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Techphile.
Join Date: Nov 2003
Location: San Francisco Bay
Posts: 6,550
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Go to the auto parts store and buy lens tape. It comes in yellow or red. Red will filter out the blue frequency. Or go to a plastics store and buy a small amount of the dark plastic film used for filtering out sunlight. Another idea...do you have any old film negatives? Pick a spot on the negative where it is completely black.... some light still shines through.
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11-08-2010, 06:26 PM
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#4 |
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Member (10 bit)
Join Date: Feb 2007
Location: Alberta, Canada
Posts: 724
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Good ideas there guys. Thanks. With the lens film etc, that is probably best applied to a bare bulb that has been removed from the chassis?
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11-08-2010, 08:56 PM
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#5 |
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Techphile.
Join Date: Nov 2003
Location: San Francisco Bay
Posts: 6,550
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Take a very small amount of clear silicone sealant and use it as glue to attach it. It will be easy to remove one day.
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11-09-2010, 01:33 AM
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#6 |
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Member (10 bit)
Join Date: May 2007
Location: USA, New Jersey
Posts: 534
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I have solved this problem before by using standard colored electrical tape available at Home Depot. These LEDs are so bright it still shines through the electrical tape but at a nice comfortable level. I simply cut a square of blue tape and place it over the LED. Make the square large enough to ensure good adherence so it stays in place.
---pete--- |
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11-09-2010, 05:54 AM
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#7 |
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Member (10 bit)
Join Date: Feb 2007
Location: Alberta, Canada
Posts: 724
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Excellent. I hope to have a chance to work on this over the weekend. Those blue L.E.D's are really bordering on annoying. I appreciate the tips...
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