Improving the Boot Light and License Plate Bulbs

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daveg
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Improving the Boot Light and License Plate Bulbs

Post by daveg » Tue Jan 26, 2010 10:59 pm

License plate bulbs below - boot light on page 3 here http://www.z4-forum.com/forum/viewtopic ... 30#p242265

I couldn't find any decent LED license plate bulbs for the Z4 (and had read on the board that other OEM solutions were too white or dim) I thought I'd make some of my own.

The problem with all of the white LED 501/W5W bulbs I could find is the LEDs weren't oriented in the right way. They either had LEDs facing forward or in all directions so would be pretty dim.
I wanted a white bulb without loosing any output.

The parts required are:

12 x 5050 SMD Power LED
2 x 4x21 Hole Vero-Board
2 x Rectifier Diode
6 x 180 Ohm Resistor


The diodes are there to protect the bulb from blowing if it is connected the wrong way round. The resistors were calculated to limit the LED current to 23mA - this should give a decent output whilst giving a decent life. I could have upped the current to make the bulbs brighter but the LEDs wouldn't have lasted as long. Some pictures for people wanting to DIY (please ask if not clear):

Image

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Here they are all soldered up, tested and ready to go:

Image

The bulbs slot straight into the stock holders and fit nicely into the housings. Some pictures on the car (camera's exposure fixed to give accurate comparison):

Before:
Image

After:
Image

All in all pretty chuffed with the result, a bit brighter and really smartens up the back at night IMO.
Last edited by daveg on Sun Feb 21, 2010 1:21 pm, edited 3 times in total.
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Done - P Zero Rosso's | Stubby | 107's | ///M MFSW | ZHP | Cruise | Custom boot/license bulbs | Full circle brake | 330 calipers | EBC Ultimax/Greenstuff | Clear sides rears + 3rd brake | Strut Brace | 4 wheel align

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easty027
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Re: Custom LED License Plate Bulbs

Post by easty027 » Tue Jan 26, 2010 11:10 pm

they look great ! nice work
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ryukin
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Re: Custom LED License Plate Bulbs

Post by ryukin » Tue Jan 26, 2010 11:15 pm

very nice. makes quite a difference!
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Mafoo
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Re: Custom LED License Plate Bulbs

Post by Mafoo » Tue Jan 26, 2010 11:15 pm

Good job. A much cleaner look for the backend. Will add this to my list of things to do on my car :thumbsup:
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Re: Custom LED License Plate Bulbs

Post by daveg » Tue Jan 26, 2010 11:28 pm

Thanks for the comments guys - got something similar going in to upgrade the crap boot light. Will post that up when done.
03 3.0i SE For Sale
Done - P Zero Rosso's | Stubby | 107's | ///M MFSW | ZHP | Cruise | Custom boot/license bulbs | Full circle brake | 330 calipers | EBC Ultimax/Greenstuff | Clear sides rears + 3rd brake | Strut Brace | 4 wheel align

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Re: Custom LED License Plate Bulbs

Post by gannet » Tue Jan 26, 2010 11:31 pm

+1 looks great :thumbsup:

fancy doing some more :o
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Re: Custom LED License Plate Bulbs

Post by Greeno » Tue Jan 26, 2010 11:57 pm

nice. what is the black bit on the end of the one on the right? how did you hook them up to the bulb socket. or did you rip the socket out and hard wire them?
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Re: Custom LED License Plate Bulbs

Post by daveg » Wed Jan 27, 2010 12:22 am

gannet wrote:fancy doing some more :o
Cheers, I could be persuaded if someone REALLY wants a pair!
Greeno wrote:nice. what is the black bit on the end of the one on the right? how did you hook them up to the bulb socket. or did you rip the socket out and hard wire them?
Thank you- that's the bulb socket - it push and twists into the plastic enclosure/lens. Putting the original bulbs back in just involves removing the encosure, unplugging the bulb, switching and put back in bumper.
03 3.0i SE For Sale
Done - P Zero Rosso's | Stubby | 107's | ///M MFSW | ZHP | Cruise | Custom boot/license bulbs | Full circle brake | 330 calipers | EBC Ultimax/Greenstuff | Clear sides rears + 3rd brake | Strut Brace | 4 wheel align

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Re: Custom LED License Plate Bulbs

Post by Exactmax » Wed Jan 27, 2010 8:42 am

I would defo want a pair of these. How much would you want for a set? Posted to Richmond, Surrey?

Let me know?
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Re: Custom LED License Plate Bulbs

Post by acerboo » Wed Jan 27, 2010 9:14 am

Exactmax wrote:I would defo want a pair of these. How much would you want for a set? Posted to Richmond, Surrey?

Let me know?
me too (kent) and for the bootlight please.
3.0si 2007

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Re: Custom LED License Plate Bulbs

Post by SSG S » Wed Jan 27, 2010 9:58 am

same here. price shippe to the states?

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Re: Custom LED License Plate Bulbs

Post by Rudd » Wed Jan 27, 2010 10:28 am

Great work, looks much better.

just got a private reg so i could do with some of those....

you shouldnt have said you could be persuaded..... how many members do we have on this forum? your going to be a busy man :poke:

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Re: Custom LED License Plate Bulbs

Post by daveg » Wed Jan 27, 2010 3:02 pm

Thanks for the interest guys. I'll post the info on the boot light when it's installed and perhaps do a small run for those that want them/these. No promises!

Regards,
Dave
03 3.0i SE For Sale
Done - P Zero Rosso's | Stubby | 107's | ///M MFSW | ZHP | Cruise | Custom boot/license bulbs | Full circle brake | 330 calipers | EBC Ultimax/Greenstuff | Clear sides rears + 3rd brake | Strut Brace | 4 wheel align

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Re: Custom LED License Plate Bulbs

Post by aRtemis » Wed Jan 27, 2010 11:41 pm

Makes a big diff I must admit. Do you think it would be worth doing the cockpit light as well?
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Re: Custom LED License Plate Bulbs

Post by eyup » Thu Jan 28, 2010 12:40 am

Like this. May be tempted if you go for a groupbuild! Also, boot light sounds a runner. OEM is ******!
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