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Old 1st December 2008, 12:02   #61
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The rebel LEDs where solder using reflow soldering to a pcb from luxeon [this is cheaper then buying the soldered LEDs] the design of the pcb is such that you can screw them to the heat sink. I had used the heat compound available in the market commonly on the first prototype but now I have not used any thermal paste or epoxy, to reduce the thermal resistance, I have polished the heat sink to a get a flat surface and screwed the PCBs to it directly with copper powder inbetween the pcbs and the heat sink, have found this to be more effective, than the thermal paste available in India, and cost effective to the thermal compunds that are imported.There is an added advantage of having more metal area to desipate the heat.The dirver design also helps in contorlling the heat generated by the LEDs.
The new heat sink design which I mentioned has the PCB built into it so the LEDs get soldered directly on the heat sink.
As for the colimeters , I have designed some to give a suitable light spread and distance needed for Automotive use but still have to get the prototypes in my hand, the palstic used here in India is not that clear and also tend to fadeout with the heat from the leds, plus there are no manufacturers who understand what I want from the lenses.

At present the project is packed and kept in storage as I have no time to work on it and low on fund too. will post the the pic once I start the project again. these pics were taken 6 months back.
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Old 1st December 2008, 20:45   #62
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Guys can any one tell me who is installing the LED strips in the headlight of the car?

I am located in Bangalore and I have seen many Swift, Civic and Corolla with this LED strip headlight.
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Old 2nd December 2008, 10:13   #63
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Default LED park lights in my Lancer

Guys
Here are the pics
Attached Thumbnails
LED lighting in cars-abcd0001.jpg  

LED lighting in cars-abcd0002.jpg  

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Old 2nd December 2008, 10:31   #64
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hi dilip, where in ekm did you get them ?
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Old 2nd December 2008, 10:51   #65
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Default LEd parklights

Hi Greenhorn
I fixed it from end effect...
Cheers
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Old 2nd December 2008, 11:17   #66
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Hi Dilip, the LED Eyebrows/eyelids on your car look nice. How much do they cost? can you please provide more details as I am interested for them for my cars too. How do they fix up to the current headlights?
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Old 2nd December 2008, 11:37   #67
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hi dilip,
nice leds.
how much costed you?
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Old 2nd December 2008, 12:37   #68
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Default LED park lights in my Lancer

Hi guys
It cost me around 1900 a pair. It has been connected to parking light switch. The LED strip is glued on top portion between the bonnet and HL so that it mounts neatly.
Cheers
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Old 2nd December 2008, 13:08   #69
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Thanks Dilip. I am just trying to find out if I can get something similiar in Hyd.
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Old 2nd December 2008, 14:13   #70
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Look cool, is the strip mounted by cutting the bonnet, above the head lights? and is it screwed in place or stuck with adhesive, Quit expansive Rs 1900/- for LEDs. does this include the fitting also?
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Old 2nd December 2008, 14:23   #71
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Quote:
Originally Posted by dilipkumar7278 View Post
Guys
Here are the pics
Hey! that is a nice one you got. Bright enough too I guess. LEDs are sitting so close and bright as well. Hope that place is not getting hot when engine is one, so that LEDs last long.

I wonder, can these be fitted inside the headlight assembly itself? heat might cause the LEDs to fail inside the enclosure when the headlights are on. I know 'anantnehru ' posted such install on this thread and he would be able to tell. But he got individual LEDs i guess and not the strip.

1900 is expensive (prompts a DIY work!), but i haven't seen a strip so bright and LEDs so close to each other. Dilip, can you post a day snap shot during the day please?
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Old 2nd December 2008, 15:23   #72
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dilipkumar7278, can you give a day time closeup photo of your install
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Old 2nd December 2008, 16:44   #73
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Quote:
Originally Posted by shyamhegde View Post
Hey! that is a nice one you got. Bright enough too I guess. LEDs are sitting so close and bright as well. Hope that place is not getting hot when engine is one, so that LEDs last long.

I wonder, can these be fitted inside the headlight assembly itself? heat might cause the LEDs to fail inside the enclosure when the headlights are on. I know 'anantnehru ' posted such install on this thread and he would be able to tell. But he got individual LEDs i guess and not the strip.

1900 is expensive (prompts a DIY work!), but i haven't seen a strip so bright and LEDs so close to each other. Dilip, can you post a day snap shot during the day please?
Nope nope, mine's a strip too.
They can be fitted inside the assembly itself, but opening the headlight for such a small change is a pain. Also, the heat inside would be alot more than outside.
Then comes the issue of sticking the strip. The strip is flat so you would need something to make the strip face outwards, rather than the bottom/top of the headlight assembly as the case maybe.
Regarding the cost, since I get these in dont know if I'm allowed to put up the cost here; but 1900 is a BIT on the higher side, wont be much of a difference otherwise.

Last edited by anantnehru : 2nd December 2008 at 16:45.
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Old 2nd December 2008, 16:53   #74
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Quote:
Originally Posted by anantnehru View Post
Nope nope, mine's a strip too.
They can be fitted inside the assembly itself, but opening the headlight for such a small change is a pain. Also, the heat inside would be alot more than outside.
Then comes the issue of sticking the strip. The strip is flat so you would need something to make the strip face outwards, rather than the bottom/top of the headlight assembly as the case maybe.
Regarding the cost, since I get these in dont know if I'm allowed to put up the cost here; but 1900 is a BIT on the higher side, wont be much of a difference otherwise.
Thanks Anant. So the way Dilip got it installed makes sense. Only I hope, it won't be visible too much during day. prices of all these accessories are low in Delhi as compared to other places as i have observed. So, anything that is 'bit' over the Delhi price should be alright.
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Old 10th June 2009, 18:53   #75
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Cool I use the maximum led lighting, i guess so

I have shifted to maximum led lighting in my drive, and i thought i should share it here. Find the pics of the led powered drive. The tails have led on all its sockets.
Comments pls on Led Fog lamps, the blinklights stuff. Has anyone used them.
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