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 Post subject: Been playing with LEDS
PostPosted: Tue Feb 06, 2018 1:16 am 
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Posts: 5293
Location: Hobbs, NM
Started out a few years ago with flashlights and then some for inside the house that use radar/microwave to detect motion and then turn on. I hardly ever touch a light switch anymore, but now, as I get my truck back to running and on the road I needed to do some work to its lights, and this is not just about attention and vanity with them 8-)

One front running turn signal light had a wire pulled out of it, and the lights are 40 years since they left the factory. A friend helping some had knocked out a seal beam headlight, and I was never happy totally with the light output anyway, of just the two 4X6 headlights I put on it years ago around 86 when normally there are 4. That plus the cataracts restricting light some and newer cars having much brighter lights let me to conclusion, to upgrade as I repaired.

So I delved into the info for the latest LED lights while repairing and cleaning up the turn signal marker lights on the front lights. Through the searches and videos I found these 2-PK SYLVANIA 2357 ZEVO LED Amber Automotive Bulb - also fits 2057A 1157A. Very bright and pricey, and may last longer than the truck. They come in red and white and amber. Putting two in my improved front turn signals. Next was headlights and I got two halogen lights with clear crystal glass, for 20 a pair off Ebay and bought an Led light sold for motorcycles, to play with in one of them. But once I started playing with it I realized getting them the way I wanted them to be would take time I did not want to spend now on it, so looked again and found this video of a different type on his 9 second street car.

https://www.youtube.com/watch?v=wDJrn0JD_wM

Yikes those are bright, but he has the normal 4, and I only would replace one and maybe two headlights with them. Found just one for about $25, but thats still 45 watts of LEDs (15 Leds, at 3 watts each) on high per light. On low only 6 of them come on, for about 18w. It came in today and I hooked power up to it and its bright, especially for just one, but not too bright on low.

What I am doing is not legal everywhere, but it is here and in many places, and it should be everywhere. I don't like HIDs or people who blind people at night.

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PostPosted: Tue Feb 20, 2018 12:51 am 
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Location: Hobbs, NM
eBay sourced GS-100A brake light strobes can be had for as little as 2 to 3 bucks. I remember when brake strobe kits were sold for the car with the shortest stopping distance in the US...the 72 Pintos, for considerably more money in 72. The cheaper ones today are made for LED bulbs, and not made to work with the higher watts incandescents. I consider them a great way to wake up drivers and keep them from rear ending someone, but may be illegal in your state or city. They flash a few times quickly and then go to steady on. Tapping the brake pedal a few times can do the same thing, but would show down the actual braking. I don't think it will bother anyone when you hit the brakes, unless they are on right your bumper where they are not suppose to be.

https://www.youtube.com/watch?v=MtY_YtSZpus

On another note I tested the amps/wattage on the 45 watt 15 LED headlight, and found on low it was 2.74a=32.5786w on high and all LEDs lit up

1.2a=14.268w on low, with 6 of the LEDs lit up in a T pattern.

@11.9v The wattage may climb slightly while running at higher voltages, but shouldn't by much.

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PostPosted: Fri Mar 09, 2018 7:52 pm 
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Location: Hobbs, NM
Adding more to all this testing I have done on LCD headlights the center spot of the light was about 850 lux measured at 12 feet. On high my meter hit 2000 lux at the center.

Here is some testing on another one a guy is using, and then after seeing this I also bought one.

https://www.youtube.com/watch?v=wDJrn0JD_wM&t=932s

I measured it to be about the same as he did at 12 feet, and its light output matched what his was doing, but it has a light cutoff, like halogens do.

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PostPosted: Thu May 10, 2018 2:07 am 
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Location: Hobbs, NM
More playing with the LED headlights and what I have found out.

http://www.st-owners.com/forums/showthread.php?162600-F2-Beam-Patterns

http://advrider.com/index.php?threads/how-to-modify-h4-led-to-reduce-glare-this-is-the-one-you-want.1080510/page-11

http://www.st-owners.com/forums/showthread.php?146534-How-to-modify-H4-led-to-reduce-glare-ST1300/page15

The F2 bulb from Evitek. Got a pair of them in from China and put them in some cheap 4X6 Ebay glass front halogen housings, and the results were a flat cutoff line, like halogens have, and even more lux hitting the target at 12 feet.

Evitek F2s

Low=1700-1900 Lux

Highs= 3200 Lux :lol: :lol: :lol:

This is really outstanding firepower on low and highs, as compared to other bulbs or halogens. Seems to be from great engineering on the part of Cree and Evitek. The Cree Cree XD16 is the same width as the halogen filaments. When cut to the same length as the halogen filaments and put in exactly the same locations you will get the same pattern and focus of light beam, as they halogens did. The XD16 chips are new from Cree and brighter. The cooling on these F2 is quite sophisticated for longer life. It uses a comper substrate for the LEDs and not just aluminum, so they can cool much faster. The F2s have a fan in their aluminum heatsinks, but are not really noisy to me. The F2 bulbs can be easily rotate to get the right position, in different housings, to get/keep the correct light pattern.

One thing to mention is the halogen replacement housings off Ebay or Amazon will require some cutting on the factory 4x6 bucket housings, to get them to fit. Like these

https://www.ebay.com/itm/4x6-H4656-DIAMOND-CUT-SQUARE-CHROME-HOUSING-GLASS-LENS-HEADLIGHTS-H4-BULBS-LAMP/282294056187?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

Just replacing an already existing halogen bulb from the factory, with the F2 should be easy and not require much and you will have much more and brighter safer light. You may think you have gone night blind, but its the lack of good light from the filament incandescent lights, and the poor aiming of them. The F2s will give you HID light, without the other problems with HIDs.

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PostPosted: Thu May 10, 2018 3:39 am 
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Location: Hobbs, NM
Dissecting a common cheaper LED halogen bulb replacement, that burned out (flickering)

https://www.youtube.com/watch?v=CX_uFs5vKc0&t=1s

The LEDs heat up are way past their design limits and then the engineering is poor on the cheaper stuff. Notice the electronic control is on the inside, and this is bad. The electronic should be on the outside as a separate module, and then plugs into the bulb. The LEDs themselves are fairly common and cheap on it and not made really for high output and heat. Next is the lack of actual effective fast thermal cooling for the LEDS. Stacking one fail on another and onto another and another, and these go bad rapidly lasting days or months.

Designed right they should be bright, and focused, and last years, and uin the near future indefinitely.

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PostPosted: Fri May 25, 2018 2:01 pm 
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Joined: Thu Feb 12, 2009 12:21 am
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Location: Hobbs, NM
Some Evitek F2 LED headlight bulbs reviews. These are sold by Evitek, and under different branding names like these. These are very bright and with a good beam patter once turned into the correct orientation position.

https://www.amazon.com/KATANA-Headlight-Extremely-Conversion-Adjustable/product-reviews/B078W5566S/ref=cm_cr_dp_d_show_all_btm?ie=UTF8&reviewerType=all_reviews

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