Good Sam Club Open Roads Forum: Tech Issues: Fluorescent to LED conversion
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Fluorescent to LED conversion

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next
deltabravo

Spokane, WA

Senior Member

Joined: 09/08/2003

View Profile


Offline
Posted: 12/17/20 06:13pm Link  |  Quote  |  Print  |  Notify Moderator

wopachop wrote:

Also note this style of LED does not like getting a voltage over 12.5v. Let alone the normal 13v float charge. Does your converter do a weekly 14v charge? If you notice it happen i would turn off your LED dealio.


You haven't seen the sepcs of the LEDs he bought, so your post about getting hot with voltages too high, etc. and "Amazon LEDs being bad" and the like is unfounded.


2009 Silverado 3500HD Dually, D/A, CCLB 4x4 (bought new 8/30/09)
2009 Arctic Fox 811 (bought new 11/9/09)
2018 Timber Ridge 24RLS (bought pre-owned 3/12/20)
2008 Haulmark 8.5x20 toy box trailer

deltabravo

Spokane, WA

Senior Member

Joined: 09/08/2003

View Profile


Offline
Posted: 12/17/20 06:16pm Link  |  Quote  |  Print  |  Notify Moderator

DrewE wrote:

Most LED dimmers are PWM chopper circuits, I believe; they rapidly switch the LEDs on and off with a varying duty cycle.


Yes, that's exactly what a PWM device does, is switch something on and off very rapidly.

PWM = Pulse Width Modulation.

Bright means a very short "off" time (pulse) and long "on" time.
Dimmer is the opposite: Longer "off" time comparative to "on" time.

C Schomer

Pueblo West, Co.

Senior Member

Joined: 12/26/2000

View Profile


Offline
Posted: 12/18/20 02:23pm Link  |  Quote  |  Print  |  Notify Moderator

Ive seen 5k temp, 5k lumen total, 5 meter strips on Amazon... WOW. I hope i can find them again. I really like 5k temp.

D.E.Bishop

Eagle Rock, CA

Senior Member

Joined: 08/09/2001

View Profile



Good Sam RV Club Member

Offline
Posted: 12/24/20 08:40am Link  |  Quote  |  Print  |  Notify Moderator

I'm a little late in chiming in on this topic but I went on the path of using strips to make my own cabinet lights in our home. They worked out so well I decided to try somehow to convert my 1990 incandescent fixtures with the early square panels which failed due to excessive heat. Then I found some strps mounted on aluminum sheets. To be honest, I forget exactly how I converted the fixtures but I think I made new backs for each of the fixtures out of metal and threw away the curved reflectors. They did and still are working well.

In our Winnie, we had flourescent fixtures and like mentioned earlier, stripped out the insides and glued the aluminum strips to the backplates. They were way to bright so I rewired two of the strips to a switch mounted in the fixture. Using the aluminum strips probably necessary as a heat sink but I liked having them.

In the archives is my post including several photos of the conversion of flourescent to LED.

Because we go to Q every year for the gems, rv show and swapmeets, I shopped around and founf inexpensive LED bulbs for the other fixtures that needed bulbs and so there are only 8 small decorated bulbs in the vanity fixtures that are filement bulbs. Those spherical frosted bulbs are very expensive and so seldom on that I didn't replace them.


"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson

David Bishop
2002 Winnebago Adventurer 32V
Back to a 2006 Suzi GV
Roadmaster 5000
Roadmaster Invisibrake


MrWizard

Traveling

Moderator

Joined: 06/27/2004

View Profile



Posted: 12/24/20 02:16pm Link  |  Quote  |  Print  |  Notify Moderator

The Safari dp previous MH
Has a 120v fixture over the dining table that uses 4 candlelabra bulbs the type used with chandeliers, I found led replacements at home depot and installed them reduced load from 60w to 10w


Radiate The Happy
....

Connected using Verizon and AT&T
1997 F53 Bounder 36s


wopachop

Who run bartertown

Senior Member

Joined: 11/17/2006

View Profile


Offline
Posted: 12/24/20 02:55pm Link  |  Quote  |  Print  |  Notify Moderator

deltabravo wrote:

wopachop wrote:

Also note this style of LED does not like getting a voltage over 12.5v. Let alone the normal 13v float charge. Does your converter do a weekly 14v charge? If you notice it happen i would turn off your LED dealio.


You haven't seen the sepcs of the LEDs he bought, so your post about getting hot with voltages too high, etc. and "Amazon LEDs being bad" and the like is unfounded.
Problem is LEDs are very sensitive to voltage changes. It's not like a regular bulb that can get 12v or 16v and not explode.

I bought a bunch of LED strips and made RV lights out of them. Used a variable voltage regular and watt meters to play around and take measurements. 14v is really hard on the LED strips and causes them to burn out. You might not notice because the individual LED is actually made of several different emitters. Put on a welding mask and look closely at your 2 or 5 year old LED strips that see 14v occasionally. In my experience many burnt out.

Went a different route and starting building Cree LEDs and a small mean well driver. They came out awesome. Constant current regardless of voltage change.

For the LED strips I would recommend a cheap dimmer that reduces voltage. If you are in your trailer and notice the converter is putting out 14.4v you could dim the lights to increase their lifespan.

The pwm does not work as well for this. It's still getting hammered with 14v. Just in pulses. It's one of the few times I would choose a voltage dimmer over pwm.

MEXICOWANDERER

las peƱas, michoacan, mexico

Senior Member

Joined: 06/01/2007

View Profile


Offline
Posted: 12/25/20 12:35pm Link  |  Quote  |  Print  |  Notify Moderator

Just a short note...

People are tossing around extremely high voltage values like common sense does not exist.

When is it *ever* appropriate to have 14.4 volts as the norm in an RV? Try never except when bulk charging. I suggest keeping things down to a subtle roar in the low to mid thirteens as a predominant value for LEDs to operate at.

Lots of DMSO and heat for my fingers this morning.

wa8yxm

Wherever I happen to park

Senior Member

Joined: 07/04/2006

View Profile


Offline
Posted: 12/25/20 03:48pm Link  |  Quote  |  Print  |  Notify Moderator

I will say againg
Some cheep LED assemblies are nothing more than a resistor and led in series.
They are easily dimmed by varying the resistor (or by putting a variable in series) but are also sensitive to battery, battery float, battery equalize or bulk charge. and tend to be damaged by the last two.

Others have a constant current regulator in series with the LED now these do vary a bit but for the most part are not affected by any of the different voltages mentioned above to dim them you use a PWM dimmer...

Some of them are not dimmable even with PWM

Some of them can handle 20 or 30 volts since the current regulator handles it. However the constant current regulator may fail at higher voltages.
The idiots who designed the Handle light on my RV used a 5 volt design.


Home is where I park it.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times


wopachop

Who run bartertown

Senior Member

Joined: 11/17/2006

View Profile


Offline
Posted: 12/25/20 04:16pm Link  |  Quote  |  Print  |  Notify Moderator

You guys are smart with this stuff. Is there a way to keep the WFCO from going into 14.4v mode?

I have my batteries disconnected, but the darn thing still goes into 14.4v mode every few days for 2-3 hours. I havnt tracked it exactly. Maybe not having a battery hooked up is causing it to happen more often?

I notice it more in the summer time because I will hear a computer fan up the revs.

C Schomer

Pueblo West, Co.

Senior Member

Joined: 12/26/2000

View Profile


Offline
Posted: 02/05/21 05:33pm Link  |  Quote  |  Print  |  Notify Moderator

I installed these yesterday and they're exactly what I wanted... very bright and very white. 5K color temp, 5300 lumens. NO yellow OR blue. Now, I need a dimmer. I ordered one but it didn't come with a diagram. 10' was perfect for 3 lights.
https://www.amazon.com/gp/product/B00PUY74TG/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1

[image]

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 4  
Prev  |  Next

Open Roads Forum  >  Tech Issues

 > Fluorescent to LED conversion
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.