BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      08-14-2009, 06:00 AM   #1
Naxeus
New Member
 
Naxeus's Avatar
 
Drives: BMW E90 LCI 320d
Join Date: Aug 2009
Location: Istanbul

Posts: 15
iTrader: (0)

Send a message via MSN to Naxeus
Post DIY: Make your own angel eyes led marker h8 bulb!

Hi all.. We all now that there is some led angel eye bulbs on market.. But they are expensive and some of us has problems to reach it... And i had some problems about finding and buying it! In Istanbul there is no place to buy it, also it is not ok to buy from ebay due to duty process. And now i make my own H8 led angel eye bulb! It works perfect for now on

Ok first of all what you need:

- Stock or market H8 bulb (x2)
- 3 power leds per bulb (any color you want)
- After calculation choosing the right resistors
- 2 compenent adhesive (has to be resist over high temparature)
- some copper wires
- and a kind of cylinder/pipe body to attach leds on it ( i used a pencil )

Lets check them:

1) H8 stock bulbs, orginal one and the one that i broke the bulb and get the socket...



2) Power leds, i have helio power leds (red color,1 watt, 2-3 V, 350 mA)
http://www.heliopto.com/Products.html



3) You have to use some resistors, depends on your leds and setup..



4) And a body that we attach the leds on it. I have pencil body...



5) A good adhesive and copper wires...

-We have to connect leds in serial, and the resistor/s to anode (+) polar. There is a hole at the power leds bracket that you can understand it is anode.



-Then we attach the wires to H8 socket, here it is which is the (+) and (-)!



-Make the copper wires a bit long to work properly, then add some adhesive to body and the socket. Attach them together. After that attach leds on the body in proper position you can check my bulb for that. And make the connection between leds, resistor/s and the socket. You finished it! Also add some adhesive on some wires and resistors to attach them to body..

Here it is my handmade H8 led angel bulb...



Notes: You have to calculate what resistors you have to use that depends on your leds and setup! You can use ohm's law for that:

Ohms = ( V.bat - V.led ) / Amp.led.

*where V.bat = voltage of battery, V.led = voltage of LED, Amp.led = Amp of LED

Example for my leds: (12v - 3*2v) / 0.35 A = 18 ohms but i used 2*24 ohms for safety and also for the correct brightness!

You have to check your handmade bulbs at home with 12 V power supply that it is working properly or not! Be aware of not burning resistors! So just attach higher resistors then you calculated! Also the adhesive that you use must be resist over high temparature because in hot summer days and also because of warm resistors bad adhesives can be melt! Again i say check your bulbs at home with a power supply!!! And make it work for about 1-2 hours properly! Never try it if you dont think you can handle it! You can harm your self and also your car!

And also sorry for my bad english and i didnt took pictures step by step... I will do it when i am making the new bulbs with white color leds, and then gonna post it!

Here it is the pictures after attached to my hatch











You can see that the color is a bit orange because my digital camera is not so good so we cant see the correct red color

Last edited by Naxeus; 08-19-2009 at 06:09 AM.
Naxeus is offline   Turkey
0
Reply With Quote
      08-14-2009, 06:36 AM   #2
ichiban
Colonel
 
ichiban's Avatar
 
Drives: 08 135i
Join Date: Sep 2007
Location: Bay Area, CA

Posts: 2,012
iTrader: (2)

sick
ichiban is offline  
0
Reply With Quote
      08-14-2009, 08:17 AM   #3
HondaGoneRogue
They like my Swag...
 
HondaGoneRogue's Avatar
 
Drives: 08 AW 135i
Join Date: Aug 2008
Location: Germany

Posts: 3,567
iTrader: (4)

Garage List
2008 135i  [4.33]
Crazy! Good job!
__________________

2008 AW 135i, Whats a mod?
HondaGoneRogue is offline  
0
Reply With Quote
      08-14-2009, 11:01 AM   #4
chesterfan1230
Colonel
 
chesterfan1230's Avatar
 
Drives: a Bat Mobile :)
Join Date: Apr 2008
Location: NJ

Posts: 2,557
iTrader: (10)

Garage List
2012 335iS  [0.00]
Send a message via AIM to chesterfan1230
Very good
__________________
Current: 2012 335iS
Past: 2006 e90 325xi, 2010 135i
chesterfan1230 is offline  
0
Reply With Quote
      08-14-2009, 11:43 AM   #5
Naxeus
New Member
 
Naxeus's Avatar
 
Drives: BMW E90 LCI 320d
Join Date: Aug 2009
Location: Istanbul

Posts: 15
iTrader: (0)

Send a message via MSN to Naxeus
Thanks guys!

Actually we can look this project not that the color is ok or not.. We are free to select what color we want! Also i want to say that market H8 led bulbs around 100 $, i just paid 3 dollars for 1 led (you can find it around 1-3 $), and resistors are so chip around 1 dollar for 10 resistors...

So it is around 19 dollars for 2xled bulbs, except socket because i used my own stock bulbs It is worth to try it!
Naxeus is offline   Turkey
0
Reply With Quote
      08-14-2009, 11:58 AM   #6
Endre
Lieutenant
 
Endre's Avatar
 
Drives: E36 M3 3.2 (321hp)
Join Date: Mar 2008
Location: Molde

Posts: 420
iTrader: (0)

Garage List
2008 E82 120d  [5.00]
What is ACS on your car btw? Remap?
__________________
120d, M-sport, H&R springs,Remus Exhaust, 135I kidneys, 18"BMW performance with Toyo T1R.(summer) 17" style 207 with Michelin Xice(winter), 17" M3 replica with Toyo R888 (Track), Hardwired H/K GPS 810. SOLD! Now driving E36 M3 3.2 (321Hp)
Track and Autox
Endre is offline   Norway
0
Reply With Quote
      08-14-2009, 12:08 PM   #7
aacabriolet
Captain
 
aacabriolet's Avatar
 
Drives: '14 435i Coupe
Join Date: Apr 2009
Location: SA

Posts: 834
iTrader: (0)

Nice demon eyes

If only we could get angels for us guys with the halogen headlights (no xenon projectors)
aacabriolet is offline   No_Country
0
Reply With Quote
      08-14-2009, 12:34 PM   #8
HondaGoneRogue
They like my Swag...
 
HondaGoneRogue's Avatar
 
Drives: 08 AW 135i
Join Date: Aug 2008
Location: Germany

Posts: 3,567
iTrader: (4)

Garage List
2008 135i  [4.33]
Quote:
Originally Posted by Endre View Post
What is ACS on your car btw? Remap?
Roof spoiler. And he said he plans on getting the wheels and front spoiler.
__________________

2008 AW 135i, Whats a mod?
HondaGoneRogue is offline  
0
Reply With Quote
      08-14-2009, 04:42 PM   #9
nfot
The Greek connection
 
Drives: 135 M sport
Join Date: Jun 2009
Location: Greece

Posts: 21
iTrader: (0)

Excellent job !!!
nfot is offline   Greece
0
Reply With Quote
      08-15-2009, 05:47 AM   #10
Naxeus
New Member
 
Naxeus's Avatar
 
Drives: BMW E90 LCI 320d
Join Date: Aug 2009
Location: Istanbul

Posts: 15
iTrader: (0)

Send a message via MSN to Naxeus
Quote:
Originally Posted by Endre View Post
What is ACS on your car btw? Remap?
As HondaGoneRogue said it is true mate, i am gonna do it soon Actually not yet sure for the wheels i am thinking on Oz Racing, but front spoiler is ok...

And i started working on white leds, also taking step by step pictures...
Naxeus is offline   Turkey
0
Reply With Quote
      06-05-2010, 05:29 PM   #11
theshadow27
Registered
 
Drives: E90 M3
Join Date: Jun 2010
Location: USA

Posts: 3
iTrader: (0)

Quote:
Originally Posted by Naxeus View Post
Here it is my handmade H8 led angel bulb...



Notes: You have to calculate what resistors you have to use that depends on your leds and setup! You can use ohm's law for that:

Ohms = ( V.bat - V.led ) / Amp.led.

*where V.bat = voltage of battery, V.led = voltage of LED, Amp.led = Amp of LED

Example for my leds: (12v - 3*2v) / 0.35 A = 18 ohms but i used 2*24 ohms for safety and also for the correct brightness!
I don't recommend anyone try to copy this as shown above, for the following reasons:
1) the LEDs pictured above (1w) generate significant amounts of heat and are designed to be mounted on a metal heat-sink with thermal compound, not glued to a plastic pencil.
2) As shown, there are three LEDs in series which have a total forward voltage of 6v, which means the resistor must drop the remaining 6v (actually, closer to 7.5v, since the nominal battery voltage is 13.5v). He used Ohm's law correctly but neglected to take power dissipation into account. 350mA at 6v is 2.1w of heat that must be dissipated, in this case through a 1/4w (shown) resistor. Result is a guaranteed fire or burnt out resistor within seconds.
3) Even with the "correction" to 48 ohms (limiting current to 150mA, and brightness to about 1/4 the nominal of the LED) there is still 1.1w being dissipated in each resistor... While this won't burn out as quickly (a 1/4w resistor can run for a few hours at 1/2w before giving up, and even 1w for a few minutes) it will still burn out, and possibly melt (or ignite) surrounding surfaces.

To do this correctly, the center stalk must be an aluminum heatsink and 350mA + LEDs require a regulator, resistors are not practical when dissipating watts... In short, unless you've designed with high-power LEDs before, I'd leave this to a major manufacturer or use regular 5mm or 3mm (20mA) LEDs.
theshadow27 is offline  
0
Reply With Quote
      07-21-2010, 03:03 PM   #12
Simsims
Captain
 
Drives: 119/220
Join Date: Jul 2009
Location: Ottawa

Posts: 607
iTrader: (0)

Quote:
Originally Posted by theshadow27 View Post
I don't recommend anyone try to copy this as shown above, for the following reasons:
1) the LEDs pictured above (1w) generate significant amounts of heat and are designed to be mounted on a metal heat-sink with thermal compound, not glued to a plastic pencil.
2) As shown, there are three LEDs in series which have a total forward voltage of 6v, which means the resistor must drop the remaining 6v (actually, closer to 7.5v, since the nominal battery voltage is 13.5v). He used Ohm's law correctly but neglected to take power dissipation into account. 350mA at 6v is 2.1w of heat that must be dissipated, in this case through a 1/4w (shown) resistor. Result is a guaranteed fire or burnt out resistor within seconds.
3) Even with the "correction" to 48 ohms (limiting current to 150mA, and brightness to about 1/4 the nominal of the LED) there is still 1.1w being dissipated in each resistor... While this won't burn out as quickly (a 1/4w resistor can run for a few hours at 1/2w before giving up, and even 1w for a few minutes) it will still burn out, and possibly melt (or ignite) surrounding surfaces.

To do this correctly, the center stalk must be an aluminum heatsink and 350mA + LEDs require a regulator, resistors are not practical when dissipating watts... In short, unless you've designed with high-power LEDs before, I'd leave this to a major manufacturer or use regular 5mm or 3mm (20mA) LEDs.
he's right
__________________
VO 1M - everything except sunroof
RIP BSM 135i 2009-2011
Simsims is offline   Canada
0
Reply With Quote
      08-05-2010, 12:56 AM   #13
135forthewin
Lieutenant
 
Drives: sideways
Join Date: Oct 2008
Location: U.S.

Posts: 546
iTrader: (0)

Maybe someone could re-position the LEDs until they got it pointing at the mirrors so the Halos are lit evenly?

Just a thought...
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(1addicts.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
135forthewin is offline   United_States
0
Reply With Quote
      01-31-2011, 02:11 PM   #14
~e88~
Registered
 
Drives: 2010 128i Cabriolet
Join Date: Jan 2011
Location: Canada

Posts: 1
iTrader: (0)

Nice work!
~e88~ is offline  
0
Reply With Quote
      01-31-2011, 02:55 PM   #15
aacabriolet
Captain
 
aacabriolet's Avatar
 
Drives: '14 435i Coupe
Join Date: Apr 2009
Location: SA

Posts: 834
iTrader: (0)

Quote:
Originally Posted by theshadow27 View Post
In short, unless you've designed with high-power LEDs before, I'd leave this to a major manufacturer or use regular 5mm or 3mm (20mA) LEDs.
Thing is 5mm or 3mm won't provide enough light imo (as you can tell by the el cheapo angel eye bulb replacements out there on eBay)

Just need to get a nice aluminium heatsink machined then I don't see how it could be so hard. Wire in a fuse and regulator, with a few luxeon high powered LED's. ala LUX H8
aacabriolet is offline   No_Country
0
Reply With Quote
      01-31-2011, 07:51 PM   #16
mds82
Major General
 
mds82's Avatar
 
Drives: 2006 325xi
Join Date: Aug 2005
Location: South Central Connecticut

Posts: 5,837
iTrader: (40)

Garage List
Send a message via AIM to mds82 Send a message via Yahoo to mds82
Quote:
Originally Posted by theshadow27 View Post
I don't recommend anyone try to copy this as shown above, for the following reasons:
1) the LEDs pictured above (1w) generate significant amounts of heat and are designed to be mounted on a metal heat-sink with thermal compound, not glued to a plastic pencil.
2) As shown, there are three LEDs in series which have a total forward voltage of 6v, which means the resistor must drop the remaining 6v (actually, closer to 7.5v, since the nominal battery voltage is 13.5v). He used Ohm's law correctly but neglected to take power dissipation into account. 350mA at 6v is 2.1w of heat that must be dissipated, in this case through a 1/4w (shown) resistor. Result is a guaranteed fire or burnt out resistor within seconds.
3) Even with the "correction" to 48 ohms (limiting current to 150mA, and brightness to about 1/4 the nominal of the LED) there is still 1.1w being dissipated in each resistor... While this won't burn out as quickly (a 1/4w resistor can run for a few hours at 1/2w before giving up, and even 1w for a few minutes) it will still burn out, and possibly melt (or ignite) surrounding surfaces.

To do this correctly, the center stalk must be an aluminum heatsink and 350mA + LEDs require a regulator, resistors are not practical when dissipating watts... In short, unless you've designed with high-power LEDs before, I'd leave this to a major manufacturer or use regular 5mm or 3mm (20mA) LEDs.
Wow i would definitely not recommend this. as stated above, the LED's will produce too much heat, and the resistors will product too much heat. Your looking at starting a fire inside your headlight
__________________

19" Breyton Race GTS Matt Grey, Eisenmann 4x70 Exhaust with SR Pipes. Vorsteiner Hood, Bilstein Shocks, CFEverywhere, mtec rear,
Carbon Fiber Headlights
mds82 is offline  
0
Reply With Quote
      02-09-2011, 02:52 AM   #17
adam-18
New Member
 
Drives: n/a
Join Date: Feb 2011
Location: Utah

Posts: 7
iTrader: (0)

Looks good, how is it holding up?
adam-18 is offline  
0
Reply With Quote
Post Reply

Bookmarks

Tags
angel eyes, h8 bulb, led

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 06:05 AM.




1addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST