Jump to content
Light-O-Rama Forums
Dave H1

10w RGB Flood Light - Reverse Engineering

Recommended Posts

I found some older pics, same 10W leds r, g, b.  This was before I added the white.  Unfortunately I don't have a pic as what white looked like using RGB.  If I remember right, blue was a little strong.  Plus I figured it would be better to run a 10W white than 30W RGB.  The house pics is one 10W led lighting up the side of the house.  My current setup has three fixtures much closer to the house allowing more than one color to show on the house or chase across.  With the fixtures close to the house, I rarely go above 20% except on white when I want a blast of light B)

 

For some stupid reason on my current fixtures I used JB Weld instead of screws to mount the leds, works, but looks like crap.

 

The fixtures themselves are from used fuser rollers from the production equipment I work on.  I have a metal lathe that works great for making these.  I'm thinking about maybe selling some this year if there is interest.  I need to get more 20W RGB leds and figure out which rollers will work best and how available that particular roller will be.

 

http://s329.beta.photobucket.com/user/scubado65/library/#/user/scubado65/library/RGB%20Flood%20lights?&_suid=1361926512380006613747585083651

Edited by scubado

Share this post


Link to post
Share on other sites

Thanks Jim,

I saw two video clips of the green LEDs against the side of the house (no pics that I noticed). Looks really good.

Also, do you have pics of the lights/housing assy and what the fuser rollers are that you are using? (not sure what fuser rollers are)

Thank you for sharing.

Edited by Santas Helper

Share this post


Link to post
Share on other sites

Where'd you find the videos?  The page I posted just has pics.  The fuser rollers are heated with halogen lamps they fuse toner on the paper.  Some machines have a very thin walled roller that is worthless to me, but some machines have thick walled rollers that are great to work with.  Plus each model series has different size rollers.  If I were to use just the 20W RGB led, I could make some fairly small fixtures that would really pack a punch.  I can also make them into spots by recessing the light in the tube.  I'll try to get a pic of some of the rollers I use tomorrow.

Edited by scubado

Share this post


Link to post
Share on other sites

Jim,

 

Are there resistors incorporated into your floods?

Do these LEDs require any constant current limiting devices?

 

They appear to be pretty straight forward.  Do you have any comparison between the RGB chips and the individual color chips?

Share this post


Link to post
Share on other sites

Jim,

Your fuser tubes are the heat sink, correct??

 

Do you also use any thermal compound on the back of the led?

Share this post


Link to post
Share on other sites

Where'd you find the videos?  The page I posted just has pics.  The fuser rollers are heated with halogen lamps they fuse toner on the paper.  Some machines have a very thin walled roller that is worthless to me, but some machines have thick walled rollers that are great to work with.  Plus each model series has different size rollers.  If I were to use just the 20W RGB led, I could make some fairly small fixtures that would really pack a punch.  I can also make them into spots by recessing the light in the tube.  I'll try to get a pic of some of the rollers I use tomorrow.

 

Jim, there were two videos showing 3 green floods going back and forth in random sequence. Then there were other pics showing hacked extension cords, your Marty fan and other personal stuff.

But now it just shows the 4 pics. It must have been a Photobucket hick-up.

 

I like the idea and as Dave asked, I'm curious myself.

Thanks again,

Edited by Santas Helper

Share this post


Link to post
Share on other sites

Yes, I use thermo compound.  The leds are mounted on 1/4" think aluminum inside the aluminum housing.  The whole thing acts as a heat sink and will melt the snow off of them.  They are tough leds too.  When I used to scuba dive, I used similar fixtures under water for my camera.  One fixture leaked and flooded the led, didn't stop it from working.  I also have one that uplights my Birch tree everynight for three years.  It might get replaced this year with RGB and 20W white.

Share this post


Link to post
Share on other sites

I use two 10ohm 5W resistors in parrallel for red I may have switched to something else, but I can't find what I'm currently using.

I use a 2ohm 1W resistor for blue

I don't recall having any issues with green running on 12V straight

10W white can survive on 12V straight, but adding a 1ohm resistor would be a good idea or use the same as the blue.

20W white handles my van straight with no problems, for over a year now and my vehicle is used for work.

Share this post


Link to post
Share on other sites

I ordered 2  20W RGB leds this morning.  It'll probably take a couple weeks to get here.

Share this post


Link to post
Share on other sites

I ordered 2  20W RGB leds this morning.  It'll probably take a couple weeks to get here.

Keep us posted Jim,

I'm curious to see the difference in the 10w vrs 20w

Share this post


Link to post
Share on other sites

were they the flood units or just the chips??

Share this post


Link to post
Share on other sites

I just started reading this thread......So is the remote control flood not as good as the one that scubado recomends or is it because its only 10W?   Sorry for the dumb questions ....just trying to understand all this. and find a low cost solution

Share this post


Link to post
Share on other sites

were they the flood units or just the chips??

Just the chips. I make own fixtures.

 

gmac: The remote control is useless for this hobby.  You can buy them to get the chip with housing, but you have to bypass the controller.

Share this post


Link to post
Share on other sites

I just started reading this thread......So is the remote control flood not as good as the one that scubado recomends or is it because its only 10W?   Sorry for the dumb questions ....just trying to understand all this. and find a low cost solution

Gmac,

As Jim pointed out, the remote is useless when wanting to control them yourself but I must say, for the cost you get a very bright RGB LED chip in a weather proof housing which is great if you don't want to mess with making your own. I'm leaning this way for ease and cost. And the dang things put out some serious light in all colors.

But Jim here has a pretty good idea of making his own housing which I want to see and hear more of.

Share this post


Link to post
Share on other sites

Gmac,

As Jim pointed out, the remote is useless when wanting to control them yourself but I must say, for the cost you get a very bright RGB LED chip in a weather proof housing which is great if you don't want to mess with making your own. I'm leaning this way for ease and cost. And the dang things put out some serious light in all colors.

But Jim here has a pretty good idea of making his own housing which I want to see and hear more of.

Thanks for the replys.....Guess I'll just stay tuned in and listen to you guys ........One more question would the 20W that jim is doing that much brighter than the 10W you have?  Just from seeing double watts I would think so but maybe there are other things that come in to play also

Share this post


Link to post
Share on other sites

Thanks for the replys.....Guess I'll just stay tuned in and listen to you guys ........One more question would the 20W that jim is doing that much brighter than the 10W you have?  Just from seeing double watts I would think so but maybe there are other things that come in to play also

The 20W ones I buy are series parrallel.  The 10w RGB ones have 3 leds per color.  The 20w ones have 6 leds per color.  If one goes bad, I loose three, but still have three working.  The cheaper 20W rgb ones have 6 in series and require an odd voltage and power supply.  If one burns out, SOL.

 

BTW, the 10W single color leds have 9 leds.

 

Tom,  when the new ones show up, I'll do some pics during the build.

Share this post


Link to post
Share on other sites

Tom,  when the new ones show up, I'll do some pics during the build.

 

Very nice!!! Thanks Jim.

Share this post


Link to post
Share on other sites

The 20W RGB leds showed up today. Sunday I'll start working on a new fixture.

  • Like 1

Share this post


Link to post
Share on other sites

Looking forward to how it turns out

Share this post


Link to post
Share on other sites

ARRRRRG!  They sent me the cheap ones that use the higher voltage!  Now I gotta wait again.  :angry:

Share this post


Link to post
Share on other sites

After a couple messages to the vendor about the product I received, I get this reply:

 

hello friend
thanks for your reply
i have asked our supplier
and he told me that this items they made the voltage
red : 12-13v green : 18-19v blue: 18-19v
 
 
and i will revise the description now
sorry for this inconvenience
best regards
Mahone
MSN: partspipe@hotmail.com
[working time: 9:00-17:00 GMT +8:00]
Tel No.: +86-755-25006172
Mobile Phone No.: +86-(0)13923488897
Fax No.: +86-755-25003540
welcome to visit our company website:
www.partspipe.com
we accept customer order for any product!

 

So I replied back with: Are you going to send me the correct ones or give me a refund?

The saga continues...

 

From a different vendor I'm looking to get some RGB ribbon from, I found these RGB modules in their store that may be of interest to some of you. I haven't purchased from them yet, but have gotten quick responses to my questions. I'm planning to buy some ribbon very soon.

http://www.ebay.com/itm/New-RGB-Super-Bright-12V-20PCS-LED-Modules-5050SMD-3Leds-Waterproof-Light-Lamp-/350679997696?pt=LH_DefaultDomain_0&hash=item51a6281d00

Share this post


Link to post
Share on other sites

Update:  The current vendor wants me to send these back and I'll get for credit plus return shipping. 

 

Exploring my options It seems that the trend is going to the higher voltage lower current models.  I could get a 24V power supply to run these, but then I need a 36V power supply to run 20-100W white leds.  Either way, it eliminates the possibility to use DMX, not a problem with a LOR DC controller.  Another option would be to use a 36V supply and 30W RGB leds and then whichever white one I want.

 

I did find another potential source for the easier to use 20w rgb leds.  I emailed them to find out what their stock levels are at and if they intend to stay with the current version or switch to the other style.

Share this post


Link to post
Share on other sites

The thing that sucks is, if you buy the ones with the enclosure, chances are higher that you'll get the ones that require the higher voltage.  I need to get in touch with the person I sold a set to, to see if he has them wired up to his power source yet.  I'd like to see how well it can produce white, just for sh--ts and giggles.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...