My little project for today

16 posts / 0 new
Last post
charlestt
Offline
Last seen: 1 year 12 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK
My little project for today

Well just for Al here's my latest led project..

For those who don't know these are philips lumileds 1w so  thats 3 per side :)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A little bright Smile

 

 

Installed sorry for the poor iphone pics.

 

 

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

Edited by: sb56637 on 02/14/2012 - 08:18 Reason: sb56637 replaced budgetlightforum.cz.cc with budgetlightforum.com via Scanner Search and Replace module.
Don
Don's picture
Offline
Last seen: 2 years 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

Did it take long to build?

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

alfreddajero
alfreddajero's picture
Offline
Last seen: 1 year 6 months ago
Joined: 01/14/2010 - 00:28
Posts: 1795
Location: Virginia Beach VA

All i can say is WOW......that sucker is bright.

With Darkness, there will always be Light.

 

 

charlestt
Offline
Last seen: 1 year 12 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK

Hi Don once i got all the bits together i'd say about an hour. unfortunately the heatsinks were too high so had to cut them down to get them to fit..

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

Don
Don's picture
Offline
Last seen: 2 years 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

Which is why my favourite tool is an angle grinder...

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

alfreddajero
alfreddajero's picture
Offline
Last seen: 1 year 6 months ago
Joined: 01/14/2010 - 00:28
Posts: 1795
Location: Virginia Beach VA

Mines a Dremel with a sander barrel at the front.  Hmmmmmmm that sucker is bright, you might think of just using one led per side.

With Darkness, there will always be Light.

 

 

charlestt
Offline
Last seen: 1 year 12 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK

Unfortunately i have neither so a junior hacksaw is my friend :)

 

Al you can never have too much light...

They are much better in real life my phone over exposes a fair bit.

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

Don
Don's picture
Offline
Last seen: 2 years 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

So bought an angle grinder. Just remember to wear eye protection.

 

Iron filings in the eye rust and stick to the eyeball and have to be lifted off with a needle. This is about as little fun as it sounds.

 

Believe me, I know.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

alfreddajero
alfreddajero's picture
Offline
Last seen: 1 year 6 months ago
Joined: 01/14/2010 - 00:28
Posts: 1795
Location: Virginia Beach VA

Okay......they just look bright.  Is there any way you can put a colored filter over the leds.  Might be awesome if a color were to show.

With Darkness, there will always be Light.

 

 

charlestt
Offline
Last seen: 1 year 12 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK

No reason why you couldn't put a colored filter behind the lense..

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

Don
Don's picture
Offline
Last seen: 2 years 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

charlestt wrote:

No reason why you couldn't put a colored filter behind the lense..

 

Construction and Use Regulations?

 

My father has a copy along with the essential commentary on it produced by Grampian Police and issued nationally. I have a feeling that for road use lights for number plates have to be white. And not bright enough to upset speed cameras. Will check. Which is a tedious business as it takes 22 pages to say that on traffic lights, the red light goes on the top, the amber one in the middle and the green one on the bottom.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

charlestt
Offline
Last seen: 1 year 12 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK

True but a filter on them would be ok if used for show purposes..

 

I need to re-look at the heatsinks i had to cut down the ones i used buy about 1/4 so im afraid that wont be sufficient, I have some iron bar in the garage about the right size anyone know if that would be ok to use..

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

alfreddajero
alfreddajero's picture
Offline
Last seen: 1 year 6 months ago
Joined: 01/14/2010 - 00:28
Posts: 1795
Location: Virginia Beach VA

You might want to find some aluminum.....

With Darkness, there will always be Light.

 

 

Don
Don's picture
Offline
Last seen: 2 years 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

charlestt wrote:

True but a filter on them would be ok if used for show purposes..

 

I need to re-look at the heatsinks i had to cut down the ones i used buy about 1/4 so im afraid that wont be sufficient, I have some iron bar in the garage about the right size anyone know if that would be ok to use..

 

Power shouldn't be a problem - attach a suitable sized fan to the heatsink. What sort of temperatures are they running at? Try to avoid little fans - they are annoyingly loud. 

 

Does the hot air have anywhere to go? Ventilation (in a way that doesn't allow water to get inside) might be all that's needed. Or a bigger resistor - turn the current and brightness down a bit, less heat to lose.

 

In still air I've run a rather inefficient 5W led on the heatsink of an old Pentium chip with no forced cooling.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...

charlestt
Offline
Last seen: 1 year 12 months ago
Joined: 01/16/2010 - 09:05
Posts: 664
Location: Bristol UK

Hi Don the air is still as its inside the bootlid/tailgate there is quite a bit of air in there though but theres not really anywhere for it to go.

I thought about adding a fan but again i have run into space issues.

 

BTW the lights are outside of the main body and the heatsink is making some contact with the boot lid.

 

Charles

 

 

 

 http://i776.photobucket.com/albums/yy41/charlestt225/Sig/A1200023-1.jpg" width="159" he

Don
Don's picture
Offline
Last seen: 2 years 1 month ago
Joined: 01/12/2010 - 16:32
Posts: 6617
Location: Scotland

If you can get thermal contact with the boot lid, you have a most excellent heatsink of rather enormous size. I'd be tempted to cut the fins off and get the heatsink as tightly in contact with the boot lid as possible. Using a thin layer of heatsink goo and some means of holding the LEDs in place.

 

Actually, I'd probably just use it to see what happened, easy enough to fix later if need be. As long as you can keep the LEDs below 70 centigrade not to much can go wrong.

 

The numbers from my light tests are always to be found here.

https://spreadsheets.google.com/ccc?key=0ApkFM37n_QnRdDU5MDNzOURjYllmZHI...