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HiRo-CuBe
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HiRo-CuBe Aug 5, 5:07am - #240971 
2000 Liquid Silver Toyota Celica
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2000 Toyota Celica

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Riverside, CA
LED install up where the dome light is?

I was wondering if anyone knows how I could mount maybe 2 tiny LED's like they have in some Lexus models, so it'll light up a very small area and not be bothering while driving. Possibly hook it up to a switch or something. confused
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slidr
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slidr Aug 5, 5:17am - #240972 

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Saint Louis, MO
Yeah, you could. I'm no electrical expert or anything, but here's what you may need to do.

Solder some resistors onto the LED's you will be using, and hook the positive and negative leads into the bulb housing. As for the switch, you could always hook that up to the dome fuse, as opposed to running wires up to the dome light itself.

Just a guess though.

Have you just considered swapping blue lights (or whatever color you want to use) for the dull yellow lights that are already in there, and lining the inside of the dome light with some thin acetate tape the same color of the light that you put in, as to somewhat dull the light coming out? If that even makes any sense. spineyes

Might be a lot easier on ya.

Aqua Teen Hunger Force...number one in the hood, G
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DJ_Curtiz
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DJ_Curtiz Aug 5, 3:43pm - #240973 
2001 Liquid Silver Toyota Celica GT
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LED'S can handle 12 V these days so no need for the resistor.. wave

DJ CURTIZ - taking over the world one record at a time
Live life on the edge, otherwise you take up too much space.
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slidr
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slidr Aug 5, 10:52pm - #240974 

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Originally Posted by DJ_Curtiz
LED'S can handle 12 V these days so no need for the resistor.. wave
I don't know what type of LED's you are talking about, but the majority of them cannot.

Aqua Teen Hunger Force...number one in the hood, G
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HiRo-CuBe
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HiRo-CuBe Aug 5, 10:57pm - #240975 
2000 Liquid Silver Toyota Celica
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2000 Toyota Celica

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Riverside, CA
Originally Posted by slidr
Yeah, you could. I'm no electrical expert or anything, but here's what you may need to do.

Solder some resistors onto the LED's you will be using, and hook the positive and negative leads into the bulb housing. As for the switch, you could always hook that up to the dome fuse, as opposed to running wires up to the dome light itself.

Just a guess though.

Have you just considered swapping blue lights (or whatever color you want to use) for the dull yellow lights that are already in there, and lining the inside of the dome light with some thin acetate tape the same color of the light that you put in, as to somewhat dull the light coming out? If that even makes any sense. spineyes

Might be a lot easier on ya.


Hmm sweet, what kind of LED would work for something like this? Thanks
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Zero
Furi Kuri
Zero Aug 5, 10:58pm - #240976 

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2002 Toyota Celica GT

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San Diego, CA
true, i was making some angel eyes. and i put the LED to a 12v energy source and it burnt out my LED. using a resistor is the best way to go because LED are hella expensive tongue

I've mastered the art of the After Image Technique.
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slidr
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slidr Aug 5, 11:02pm - #240977 

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2000 Toyota Celica

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Saint Louis, MO
Originally Posted by HiRo-CuBe
Originally Posted by slidr
Yeah, you could. I'm no electrical expert or anything, but here's what you may need to do.

Solder some resistors onto the LED's you will be using, and hook the positive and negative leads into the bulb housing. As for the switch, you could always hook that up to the dome fuse, as opposed to running wires up to the dome light itself.

Just a guess though.

Have you just considered swapping blue lights (or whatever color you want to use) for the dull yellow lights that are already in there, and lining the inside of the dome light with some thin acetate tape the same color of the light that you put in, as to somewhat dull the light coming out? If that even makes any sense. spineyes

Might be a lot easier on ya.


Hmm sweet, what kind of LED would work for something like this? Thanks


The kind that you would need you could get at a Radio Shack. But if I were you, I'd try the second method that does not involve hard wiring LED's.

Aqua Teen Hunger Force...number one in the hood, G
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RedDevil
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RedDevil Aug 6, 8:21am - #240978 
2002 Red Toyota Celica
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Originally Posted by slidr
Originally Posted by DJ_Curtiz
LED'S can handle 12 V these days so no need for the resistor.. wave
I don't know what type of LED's you are talking about, but the majority of them cannot.

Some LED that has resistor build into it... grin
Typically 194 LED...
Just LED alone does from around 1 volt to 4 volt...
It varies a little...

Sell SUPER White / [color:"red"]RED[/color] / [color:"blue"]BLUE[/color] LED and more for Gauge/LCD/Radio
To direct order page http://complabs.nevada.edu/~yoos3/led_stuff/store/
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Vital
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Vital Aug 6, 12:33pm - #240979 

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2002 Toyota Celica GT

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Ontario, Canada
I used a LED bar designed for inner door mounting. It's flexible, has an sticky backing and contains 4 LED's (blue or red are your only choices for color). It's realllllllllly bright! grin

I tried to use two 3mm LED's but found the solder typically let go as the contact points got quite hot.

Not sure if US Walmarts are carrying them, but up here you can score a 4 pak of blue or red resistors for $8. They are pre-wired with resistors for any 12v application.

Here's a link to the light bar I'm speaking of:
http://www.import-performance-parts.com/pilot_led_parking_signal_lights.html
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brianhaman
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brianhaman Aug 6, 7:23pm - #240980 
2003 White Toyota Celica
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2003 Toyota Celica

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You have to use a resistor to limit the current unless one is already built in. About 20 mA is a good number for an led. Remember V = I*R.
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birdboyzz
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birdboyzz Aug 7, 12:43am - #240981 
02 silver Toyota Celica
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ny
I took out my bulb and replaced it with all LEDs. It wasn't hard, but it was alittle costly. I used 12 LEDs, 6 blue, 6 white. I got them from Radio Shack. They were the brightest ones they had, and they better be for $5 a piece!! I filled up the entire space the bulb was in with a piece of thin card board. Then i used a hole puncher to punce out all the holes for the LEDs. Since there are 3.5 volt LEDs, I wired 3 sets of 4 in series. 3.5 X 4 = 14Volts which is perfect. My DigiCam cant capture the colors perfectly. The blue LEDs are not greenish like in the pic, they are a perfect blue. Its hard to explain the light difference between this and a regular bulb. The light is just more clean and crisp..
1870157877-ledsoff.JPG
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birdboyzz
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birdboyzz Aug 7, 12:45am - #240982 
02 silver Toyota Celica
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ny
2
1870157878-ledson.JPG
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birdboyzz
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birdboyzz Aug 7, 12:46am - #240983 
02 silver Toyota Celica
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ny
3
1870157879-ledson2.JPG
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HiRo-CuBe
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HiRo-CuBe Aug 7, 1:27am - #240984 
2000 Liquid Silver Toyota Celica
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Riverside, CA
wow that's pretty cool good job, if I were to install just 2 LED's next to the moon roof control in that little space, would I need to get resistors?
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birdboyzz
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birdboyzz Aug 7, 1:41am - #240985 
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ny
yes you would, and the value of it depends on the LEDs mA rateing. The bright ones use 20mA and need 3.6 Vols each, and you want to use 2 of them. So: 3.6 X 2 = 7.2. The voltage in you car go up to 14, so 14-7.2=6.8. So, you need a Resistor that will drop 6.8 volts at 20mA. since R=V/I, 6.8/.02= 340. You will need a 340 OHm Res. You take all 3 things and wire them in series. And remember, a LED will not work if put in backwards...
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Erick
Bread Fishing..
Erick Aug 7, 8:18am - #240986 

Bread Fishing..
2001 Toyota Celica GT

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Bay Area, CA
can you make an install guide grin

LNK
"you only need something when you know it exists..then it becomes a want"
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hkysk8r86
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hkysk8r86 Aug 8, 4:14pm - #240987 

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Ft. Lauderdale, FL
Yeah, make an install guide, i wanna do that, it looks nice! thumbsup
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Sancho
SD Syndicate
Sancho Aug 8, 6:49pm - #240988 

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2004 Toyota Celica GT

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San Diego, CA
I just bought some LEDs yesterday. The APC brand. (don't ask how much I paid angry) I desoldered the switch and battery from the LEDs, but I tested them with a battery (AA) and they wouldn't turn on. I tried taking the solder off with an iron, but they still don't work. You think I burned them out? Could it be that I overheated and ruined the wire. What do you guys think? I can't take them back now. frown

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birdboyzz
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birdboyzz Aug 8, 9:24pm - #240989 
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ny
you would need at least 2 AAs( 3 volts ) to light it up. 1 AA is just 1.5 volts, it's not enough. Also, make sure you try swaping the LED wires on the bats. If you have the + side of the bat goin to the - of the LED it woun't work. It woun't hurt it, it just woun't light up. It should look like:
LED wire+ [+bat::Bat-][+bat::Bat-]-LED wire
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HiRo-CuBe
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HiRo-CuBe Aug 10, 6:49am - #240990 
2000 Liquid Silver Toyota Celica
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2000 Toyota Celica

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Riverside, CA
hmm I have two of those LED's left over from installing RJautowork's gauges. I wonder how many volts each of those LED's are?
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