4x4Wire's TrailTalk Forums: Wiring LEDs, the right way.

4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums





*4x4Wire TrailTalk Forums Index* 4x4Wire \| OutdoorWire \| MUIRNet News \| 4x4Voice \| 4x4Wire on FaceBook Galleries \| Offtopic Chat \| Garage Sale \| Items Wanted \| Vendors \| Trailrides and Events \| Recreational Access and Landuse

More Toyota on 4x4Wire: 4x4Wire Toyota Section | Toyota FAQ | Toyota Tech
Toyota Forums: Early Toyota Trucks | 4Runner, FJ Crusier and SUV | T100 and Tundra | Tacoma | Toyota Archives

You are not logged in. [Login]

Main Index · Search · Active Topics
New user · Who's Online · FAQ · Calendar

Toyota Forums >> Toyota Tech Archive

BoostedInline6
Body Damage is Cool

Reged: 08/24/01
Posts: 2205
Loc: N. California

Wiring LEDs, the right way.
11/04/06 06:23 PM

I am starting my first LED project--I am wiring eight white LEDs for an ambient footwell lighting project in my 4Runner. Two per side under the front dash panel and two per side under the front seats pointed towards the rear footwells. I plan to use the standard 3.6V 20 mA white LEDs.

This would be one way to do it:

However, battery voltage (measured at the dome light, which will trigger the footwell lighting) can vary from 11.9 volts to 14.8 volts. Picking my resistor based on an average of 13 volts means I am pushing only 16 mA with the engine off and overdriving the LEDs at 26 mA with the vehicle running. If I recall correctly, LEDs are pretty dim at 16 mA.

Has anyone ever used a current-limiting regulator like the LM317? Supposedly all I need to balance the circuit correctly is R = 1.25 / I (I being the current in amps). So R = 1.25 / 0.020 amps (two 20 mA LEDs in series per array), which means a 62 ohm resistor and I'm set? This seems too easy. Anyone familiar with this stuff?

--------------------
2000 4Runner | 5-speed | E-locker | Tundra/OME 2" lift | Stubbs Sliders | Deckplate/TrueFlow |

Post Extras

Print Post

Remind Me!

Notify Moderator

Entire topic
Subject	Posted by	Posted on
Wiring LEDs, the right way.	BoostedInline6	11/04/06 06:23 PM
Re: Wiring LEDs, the right way.	Robinhood150	11/05/06 11:57 PM
Re: Wiring LEDs, the right way.	BoostedInline6	11/06/06 11:03 AM
Re: Wiring LEDs, the right way.	Robinhood150	11/06/06 03:46 PM
Re: Wiring LEDs, the right way.	BoostedInline6	11/06/06 05:32 PM
Re: Wiring LEDs, the right way.	Robinhood150	11/07/06 12:36 AM
Re: Wiring LEDs, the right way.	ScottFW	11/07/06 04:50 PM
Re: Wiring LEDs, the right way.	Robinhood150	11/08/06 07:44 PM
Re: Wiring LEDs, the right way.	BoostedInline6	11/09/06 05:58 PM
Re: Wiring LEDs, the right way.	Robinhood150	11/09/06 10:05 PM
Re: Wiring LEDs, the right way.	BoostedInline6	11/13/06 12:55 PM
Re: Wiring LEDs, the right way.	BoostedInline6	11/17/06 03:14 PM
Re: Wiring LEDs, the right way.	kewlynx	04/15/07 11:22 PM
Re: Wiring LEDs, the right way.	52degrees	11/05/06 03:56 PM

Extra information

0 registered and 3 anonymous users are browsing this forum.

Moderator: Dandeman, 4Crawler, kewlynx

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Thread views: 6614

Jump to

4x4Wire.com | OutdoorWire | MUIRNet News | 4x4Voice | 4x4Wire on FaceBook
About 4x4Wire | Advertiser's Guide |

This site and all original materials contained herein are Copyright 1999 - 2013 by OutdoorWire, Inc. -- All Rights Reserved.
The use of this website, OutdoorWire, or any of its publications or services is subject to the terms of use agreement.
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.
This publication and OutdoorWire, Inc. assume no liability for your use of the material contained within this site.
OutdoorWire, 4x4Wire, SUVWire, JeepWire, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc.

Contact 4x4Wire | Privacy statement

4x4Wire TrailTalk Forums

Powered by UBB.threads™ 6.5.5

Generated in 0.016 seconds in which 0.006 seconds were spent on a total of 12 queries. Zlib compression enabled.