Author Topic: LED Driving light  (Read 42927 times)

Offline jalthar

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Re: LED Driving light
« Reply #45 on: October 14, 2011, 08:44:27 pm »
They have triple & quad CREE XML T6 various version.
even warm white version for fog light use.
you can check with them.
Even they make light according to you. email them on info@24x7diy.com
or visit www.24x7diy.com

Offline jalthar

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Re: LED Driving light
« Reply #46 on: November 09, 2011, 10:19:33 am »
Video's  of 1800Lm lights







Offline C1xRider

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Re: LED Driving light
« Reply #47 on: November 12, 2011, 07:03:30 pm »
Well, the new 3000 Lumen LED driving lights showed up today, and I'm here to tell you, LED lights have gone nuclear!

I connected one of them to a small portable jump starter I have, and lit up the tree tops of the big Fir trees around my property (it was raining, so no fires were started with them).  I still need to get them out on the road where the illumination distance can be checked out in a more realistic scenario, but one of them had no problem lighting things up 300 to 400 feet out.  The beam appears to be a dual focus of intense spot light that gets way out there, and a more localized flood light around the spot.  The T6 LED is rated at 6000K, so it's a very white light.

They are small, as you can see in the attached pics.  They are also much heavier than I expected, based on their physical size.  They weigh in at 1/2 lb each (just under 8oz).

Thanks to Armyguns for the link for his dimmer circuit (http://www.zggtr.org/index.php?topic=207.msg28222#msg28222), and the LED dimmer module (http://www.printerdoctor.com/leddimmer.htm).  I was going to make my own, but for $14, it's hardly worth the trouble.  These lights are rated at 2.5amps at 12VDC (each), and the dimmer is rated for 8 amps max.

The fourth attachment is a 1 page flyer on the lights, that the seller emailed to me a couple days after I ordered them.  They came in from China, but with a USPS tracking number, so there were no surprises.  It took about 2 weeks to get them.
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Offline C1xRider

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Re: LED Driving light
« Reply #48 on: November 12, 2011, 07:08:18 pm »
Here is a close up picture of the bracket.  The rear of the light is a large heat sink, and unscrews from the body.  The bracket can be reversed so the foot is facing either direction.  It appears the bracket is stainless, and quite sturdy.  I thought it might be flimsy, but it's not.

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Offline jalthar

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Re: LED Driving light
« Reply #49 on: November 13, 2011, 06:55:07 am »
Bl3000
3000Lm Lights Pair Beam effect

1st Picture IMG_0633  is with Bike Low beam

2nd Picture IMG_0634 is with Bike High Plus Low beam

3Rd Picture  IMG_0635 is with 3000Lm Lights Pair




Offline C1xRider

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Re: LED Driving light
« Reply #50 on: November 14, 2011, 10:01:55 am »
Jalthar, I don't think those pictures are doing the LED lights justice.  Where do you have them mounted?

I'll try to get some pics posted soon, if it stays dry long enough to do that.

For those looking for a low beam dimmer solution, I ordered one of these : http://www.ebay.com/itm/220834955528?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

At only $4, it's not a big investment if it doesn't work.  I will be modifying it to make it weather proof once I receive it.
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Offline Bugnut

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Re: LED Driving light
« Reply #51 on: December 03, 2011, 07:59:39 pm »

Semi-wordless 24x7 DIY Light write up:






















Bit of explanation here - Lights were too far back and under hard braking would hit the inner leading edge of the fairing. Not good.


Inherent weak spot because up and down motion from jarring bumps cause flex, then permanent bend...






Old 35w WallyWorld POSs...


Back position, before moving then to the front of the forks...


Mike
"Now I know what the Klingons felt like when the Enterprise was at warp 9 with photon torpedoes firing away as they blasted past. There is no way I could catch up to, much less get past that Concours when it's on the hunt it's lights at full power."

Offline C1xRider

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Re: LED Driving light
« Reply #52 on: December 03, 2011, 11:21:16 pm »
Hey Mike, what rating are those?

Are you only using them for daytime running lights?

Also, how do you like the fender mount point, do you think it's solid enough?
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Offline C1xRider

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Re: LED Driving light
« Reply #53 on: December 03, 2011, 11:42:35 pm »
For those looking for a low beam dimmer solution, I ordered one of these : http://www.ebay.com/itm/220834955528?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

At only $4, it's not a big investment if it doesn't work.  I will be modifying it to make it weather proof once I receive it.


So I received the controller, but after playing with it, I'm not satisfied with it.  The output is not a clean PWM signal, not even close.  Looking at it on a O-scope, it's more like a pulse train of spikes, with a variable delay of inactivity after them, and repeats.  It causes the LED lights to flicker while adjusting it, until they get up to about half brightness.

I reverse engineered the circuit, and it is really bad.  One of the worst implementations of a 555 timer I've ever seen.  The good news is all the necessary components are there minus a couple of diodes (plus a few extra parts), so with some rework, I think it will make a great dimmer for low beam use.

If anyone is interested, let me know and I'll post the details.  I suspect it will be more than folks here would be willing to tackle though (requires some surface mount soldering).
--------------------   BACK UP YOUR DISKS PEOPLE!! -------------------------------
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Offline VirginiaJim

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Re: LED Driving light
« Reply #54 on: December 04, 2011, 06:27:49 am »
The forum is interested.  Please post the details.
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Offline maxtog

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Re: LED Driving light
« Reply #55 on: December 04, 2011, 06:27:58 am »
So I received the controller, but after playing with it, I'm not satisfied with it.  The output is not a clean PWM signal, not even close.  Looking at it on a O-scope, it's more like a pulse train of spikes, with a variable delay of inactivity after them, and repeats.  It causes the LED lights to flicker while adjusting it, until they get up to about half brightness.

Most LED "dimmers" do just that- pulses.  That is because LED's don't tolerate dimming via voltage variation very much (maybe 20% or something).  A good pulse dimmer will strobe fast enough (always above 60 Hz) so the human eye can't tell.  Poor ones will strobe too slowly at higher dimming and it is visible.  I had a phone that did it wrong for the keyboard backlight and it drove me crazy (especially since I apparently have more sensitive eyes for strobing, compared to most people who couldn't tell).
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Offline C1xRider

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Re: LED Driving light
« Reply #56 on: December 04, 2011, 01:55:47 pm »
The forum is interested.  Please post the details.

Well, OK Jim, since you asked nicely.  It will take several posts to show what I have so far, and I'm not done yet.

For starters, here are some pictures of the $4 unit I bought.
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Offline C1xRider

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Re: LED Driving light
« Reply #57 on: December 04, 2011, 02:05:03 pm »
Here are some pictures of the power switching signal it outputs to the LED lights at different settings.
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Offline C1xRider

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Re: LED Driving light
« Reply #58 on: December 04, 2011, 02:14:49 pm »
Here is the current draw at the maximum setting (for both 3000Lm lights), and a quick drawing of the schematic I did using webtronics.googlecode.com.

I'll probably end up with a circuit more like the 2nd pic, except instead of connecting to a motor it would connect to the LEDs.

Since gimp didn't translate the file to JPG correctly, even though everything did show up fine with qwenview, I've attached the .svg file as a zip, since the forum doesn't allow the svg extension directly.

Update: Where there's a will, there's a way.  Attached a JPG of the circuit of the unit as it is today.  It's the last pic.
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Offline C1xRider

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Re: LED Driving light
« Reply #59 on: December 04, 2011, 02:28:46 pm »
Most LED "dimmers" do just that- pulses.  That is because LED's don't tolerate dimming via voltage variation very much (maybe 20% or something).  A good pulse dimmer will strobe fast enough (always above 60 Hz) so the human eye can't tell.  Poor ones will strobe too slowly at higher dimming and it is visible.  I had a phone that did it wrong for the keyboard backlight and it drove me crazy (especially since I apparently have more sensitive eyes for strobing, compared to most people who couldn't tell).

maxtog, yes, a good dimmer will output pulses at a high enough frequency to be undetectable with the human eye.  I expect a good dimmer to output a clean square wave signal, of varying duty cycle, at a high enough frequency.

If you look at the picture of the signals output by this particular dimmer, you'll see what I mean by "it's not clean".
--------------------   BACK UP YOUR DISKS PEOPLE!! -------------------------------
2012 K1600 GTL 8), 2010 C14 ABS, 2002 HD FXSTDI, 2000 XT350, 1998 C10, 1983 V65 Magna, 1978 HD SX250