LED exterior light options and advice? HID headlights - Page 3 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #31 (permalink)  
Old 02-03-2012, 11:09 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,098
Wiki Edits: 0

Thanks: 1,279
Thanked 1,122 Times in 997 Posts
Here is a discussion on the subject when I brought it up a while ago.
So what updates on lights have you guys done?

And here is what I came up with. Personally, unless you spend a bunch of money and get some super trick stuff you will end up wasting your time. I gave up and put the reflectors.
"Basics of Basics" Taillamp reflector retrofitting

As far as the head lights, depending on where you drive regular old sealed beams are plenty. But that's just me. I drive my car every single day and with street lights, you honestly don't need anymore. My concern was more about being seen, HID or sealed beam, from the front you are going to be seen so from the rear was my big worry. I am going to add a little more but the reflectors in the lights and adding a little strip reflector tape to the bumper made a HUGE difference. I was just literally out side with a flash light (while I was typing this post my cat brought in a Vole!) and from WAY down the street the flash light lit up the reflector tape on the back of my bumper BIG TIME. I am really impressed with that stuff.

Brian

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #32 (permalink)  
Old 02-03-2012, 11:12 PM
MARTINSR's Avatar
Brian Martin,Freelance adviser
 
Last photo:
Join Date: Jun 2004
Location: San francisco bay area
Age: 55
Posts: 13,098
Wiki Edits: 0

Thanks: 1,279
Thanked 1,122 Times in 997 Posts
I did send my Superbrite LED lights back for a full refund.

Brian
Reply With Quote Quick reply to this message
  #33 (permalink)  
Old 02-04-2012, 04:46 AM
Semper Gumby
 
Last photo:
Join Date: Feb 2007
Location: Vancouver, BC
Posts: 334
Wiki Edits: 2

Thanks: 144
Thanked 140 Times in 117 Posts
A couple of things to remember:

1) These things are DIODES - not light bulbs

As a diode they will pass current in only one direction. This is especially important in terms of circuit grounds. A bulb does not care which way the current flows - when it flows the resistance in the filament causes it to get so hot it glows and gives off some light - voila!

The diode on the other hand can only pass current one way. So you will sometimes get a situation where a bulb will work, but not a diode. (Problems arise most often in cases where you have TWO wires- one is ground, one is "hot") Reverse the wires, it should work!

2) As a Diode, they have nearly zero resistance. So, your turn signal flasher simply WILL NOT work. In Bob's case, when he had the bulbs in the front and diodes in the back, there was enough resistance in the circuit for the flasher to work. When he then put diodes up front as well - v low resistance and no flash!

Adding resistance makes the flashers work, but sorta negates one of the advantages of the LEDs - namely the very low current draw!

3) As Brian found out - there is a BIG drawback to most LEDs. They are purely directional! A bulb gives off light in all directions, and so a GOOD reflector is a requirement for good visibility. The reflector "fills the housing with light" and makes it possible to see the light from many angles.

Nearly every LED "bulb" has the LEDs facing straight out. (or straight out to the sides in many cases!) Nothing shines onto the reflector. The light all goes straight ahead (a bit "laser-like") and unless your eye is in the direct path of that light, you won't see very much of it! If someone made a superbrite LED that was globular, shining in all directions, then, with a GOOD reflector (thank-you Brian - excellent idea!) you could have really good tail-lights.

So- why go to LEDs at all?

Some LEDs can be VERY bright- not a bad plan - esp for those of us who have cars with small tail lights!

Yes, there are SUPER bright bulbs you can get. Those draw a LOT of power, overload circuits etc, and melt plastic lenses. LEDS draw "next to nothing" for power consumption and run cool.

Now if someone would make an 1157 replacement that is a truly globular LED cluster and has 2 or 3 times the light output of an 1157......

In the meantime, if you want LEDs, the only real option is to get the ones that replace your entire tail-light with ones that are all-in-one lens and LEDs.

And remember that you will need to add resistance to the circuit. Using a flasher that can work with LEDs won't solve the cruise control issue.

In terms of HID headlights - pretty much everything has been covered on here already - but I "think" (please correct me if I am wrong on this) that nearly every aftermarket conversion kit is low beam only. I seem to remember reading somewhere that there is a 'warm-up" time on HIDs that makes it impossible to switch back & forth from a low beam to a high beam.

European OEMs have a different way to get around that, but it is expen$ive!

Last edited by Dave57210; 02-04-2012 at 04:58 AM.
Reply With Quote Quick reply to this message
  #34 (permalink)  
Old 02-04-2012, 05:47 AM
stich626's Avatar
gearheadslife
 

Last journal entry: The TwoTonShu #10
Last photo:
Join Date: Aug 2011
Posts: 372
Wiki Edits: 0

Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by Motochris
Safety is not a fad. More light is safer..plain and simple. Not to mention..they give out MORE light with LESS current draw than a halogen, which is better as well.
Do you not wear seat belts because you are afraid of being trapped in them... or you want to be thrown free in an accident? Those are the excuses made by people that thought seat belts were a fad too.
(ps..who tints their windshield? )

how praytell are they safer, when the vehicle coming the otherway is blinded and can't see ****,, yagreat for you, you light up the sky like its daylight..
me the car coming the otherway can't see anything..
nevermind they are illegal if used without the correct lens.. and unless the retro kit makes the lights on his 38 adjustable. so he can aim them..
it'll be 1)unsafe and 2) illegal in most states..
for the same reason you can't drive around with off road lights on, some states you have to have them covered or they can ticket you..
your post about the 2 different lights and how ones brighter than the other, is useless here, as you where use'n them off road, and I'm willing to bet they where offroad lamps.. not a street convertion lamp..
I for one am sick of being blinded by these things..
the projector lens works on new cars because the reflector is 3" round if that.. in a 7" reflector.. you might as well, mount to spot lights to the nose.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
New guy needing advice before I drive myself NUTS!!!! (355 build options) Chevy Eleven Engine 12 10-19-2009 01:58 AM
Brake light on when the headlights turn on Techguy_2000 Electrical 2 10-21-2007 11:47 AM
700r4 in a light '32 roadster - advice? McDeuce Transmission - Rearend 11 02-19-2004 04:20 PM
exterior wildjeffpa Body - Exterior 3 03-28-2003 10:11 AM
Headlights, Can you shed some light on the topic? BadBowTie Electrical 7 03-20-2002 10:59 PM


All times are GMT -6. The time now is 08:58 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.