Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 04-08-2012, 07:46 PM   #15
Senior Member
 
CharlieTwo's Avatar
 
Join Date: Nov 2010
Posts: 232
That is correct. They come with a variety of adapters none of which have any resistors in them. I assumed (there's the problem) that the resistors were in the assembly that is covered with an adhesive backing. When it melted off, there were no resistors there. I took the backing off of one that was not used and ......... yup, no resistors. Too bad it didn't work. I have built lights using LED's before and (as shown above) there are formulas for figuring out how much resistance is needed. Not knowing what these lights really are makes that a problem.
__________________

__________________
ARMY VIET-NAM 70-71
95 Winnebago Brave Sport. 27'
94 33' Fleetwood Wilderness
CharlieTwo is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-08-2012, 08:48 PM   #16
Senior Member
 
Shadowcatche's Avatar
 
iRV2 No Limits Club
Join Date: Nov 2010
Posts: 1,219
The ones I bought did not have any adhesive and did have a resistor but looked very similar. Have you made a comment/report on Ebay?
__________________

__________________
Shadowcatche is offline   Reply With Quote
Old 04-09-2012, 05:47 AM   #17
Senior Member
 
CharlieTwo's Avatar
 
Join Date: Nov 2010
Posts: 232
I have contacted the manufacturer. They asked what voltage I was using. I replied 12v. DC and that is where it stands now.
__________________
ARMY VIET-NAM 70-71
95 Winnebago Brave Sport. 27'
94 33' Fleetwood Wilderness
CharlieTwo is offline   Reply With Quote
Old 04-09-2012, 08:57 AM   #18
Senior Member
 
Join Date: Feb 2011
Location: Snowbird - Waterford Mi and Citrus Springs Fl.
Posts: 3,609
Charlie - we're on the road with ours. After reading your warning, I thought I would check on mine to see what they are doing. After running them for an entire evening (4-5 hours?), they are definitely warm, but not so hot they have gotten to the point you are describing. The fact they were even that warm in itself was quite a surprise. I thought one of the attractions to running LEDs was that they ran cool? By way of explanation, my results vs. yours, the fixture I'm using might be different than yours? I think it might be acting as a heatsink as the metal plate was about the same temp as the board.

Regarding resistors, I thought those were used only to allow a circuit to detect the LED, because of the big difference in amp. draw? Or supply enough load to the turn signal flasher to let it function?
__________________
1997 37' HR Endeavor, 275hp Cat, Freightliner
03 CR-V Blue Ox, Ready Brake
ahicks is offline   Reply With Quote
Old 04-09-2012, 04:53 PM   #19
Senior Member
 
DAN L's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: Sep 2007
Posts: 2,898
Quote:
Originally Posted by CharlieTwo View Post
I have contacted the manufacturer. They asked what voltage I was using. I replied 12v. DC and that is where it stands now.
your lights are likely operating on 13.5-14 volts powered from your converter or alternator, thus the need for a resistor.
i installed a led fluorescent light replacement kit # jc-42-fl from jirah over 2 years ago. i run it about 18 hours a day. it does not state that it has a resistor, but it has a bridge rectifier to correct for polarity.
in response to your post, i just now inspected the light for heat damage. there is no evidence of heat or damage. it is running cool. my kit is ''designed for 12v systems'' which imho normally operate on higher voltage than 12v.
my led is 6400k cool white. i would rather it be warm white, 4500k.
jirah led lamp kits are rather expensive but in my experience they work well.
the package does not state where my kit was manufactured.
__________________
01 WINNEBAGO 35U W20.8.1L SW Wa, Hi. Good Sam, SKP. AMSOIL fluids. BANKS ecm program. SCAN GAUGE II w/ Ally temp. 2 LIFELINE GPL-6CT AGM Batts on their sides. TST tptts. K&N panel air filter. AERO mufflers. TAYLOR plug wires. ULTRA POWER track bar. KONI fsd shocks, toad '14 smart car
DAN L is offline   Reply With Quote
Old 04-10-2012, 05:41 PM   #20
Senior Member
 
Join Date: Jun 2007
Posts: 230
Charleytwo,
I have the 36 led panel from the same vendor and they melted the foam adhesive on the 4 panels I got.
I'm gonna mount them with high temp RTV and keep an close eye on them..
Skip H.
__________________
sjholt is offline   Reply With Quote
Old 04-23-2012, 07:12 PM   #21
Registered User
 
Fleetwood Owners Club
Freightliner Owners Club
Join Date: May 2011
Location: Silicon Valley, CA
Posts: 1,857
Semiconductor

Having once worked for a giant semiconductor company I learned some simple rules about LEDs.

Too much voltage turns a LED into a NED, Noise Emitting Diode, and then to DED, Darkenss Emitting Diode.

Too much current turns a LED into HED, Heat Emitting Diode and the transition to DED may take longer.

Normally LEDs are run at their full power rating but switched on and off based upon their duty cycle. That's a fancy way of saying how long you can leave it on before it becomes a DED or HED.

But seriously folks, that's probably why the pre made bulbs are so expensive and 'raw' LEDs are so cheap. They either contain a resistor (not the best solution because resistance = heat) or a chip that turns it on/off at at rate high enough that we don't perceive it as flashing. It sounds like some got LEDs with integrated resistors/chips and some didn't.
__________________

__________________
Muddypaws is offline   Reply With Quote
Reply



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

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
LED Bulb Question ArmyEOD Monaco Owner's Forum 14 03-27-2012 02:20 PM
Installed new 26 in led tv in bedroom in our discovery Randy blase Fleetwood Products Owner's Forum 18 03-26-2012 04:58 PM
LED lighting for entry step RustyF Going Green 13 03-12-2012 07:14 PM
LED lights suppliers pumper9x9 Class A Motorhome Discussions 20 03-11-2012 02:32 PM
LED light fixtures cargovan RV Systems & Appliances 3 03-11-2012 08:11 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:13 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.