DIY LED Parts

Looking for a source of led parts to build a set of lights for my scrubber. The scrubber is a SM100. built it quite a few years ago, and it works for what i need. originally used florescent on it, and switched to a couple IP65 from amazon about a year ago. Now all they do is flash. So decided to build my own set of units. Wondering what is a good source? Screen size is 5X12 the IP65 were working great until they decided to start flash. I have not been successful in finding the problem.
thanks in advance.

 

I constructed it myself. the screen size id 5X12.
Thanks

 

At the time I made it he had set of drawings for it on his page. Between that and the pictures of it on the web page. I constructed it to fit in my filter area. When I went to the LED, then the one overhanging wing, broke off, so I just removed it. The original construct, the florescent fixtures slip on a track into the unit. So basically I can retrofit it to about anything I configuration I want. When I get home to night I will pull it out of my filter area take some pictures of it.

Thanks for all your help.

 

Modifications are not an issue. My entire filtration system I have built form acrylic and I am constantly tweaking it. At this point I am wanting to change my lighting completely to LED, so I have been trying to find sources for the parts and educate myself on what it will take to build my own lighting. the scrubber is the first piece to be converted, but eventually I would like to set it up so that all the lighting is controlled by a central controller for all the lights. Hoping to run everything off of a raspberry pi or andrino, that is the other reason to go LED, more control of the lighting cycles. I noticed in some earlier posts, it was mentioned StephensLED as a source, but apparently they are out of business. I have found a couple of other, but they seem to a little proud of their product and pricing.

Again thanks for your help.

 

nice looking heat sink. I think I can make that work. thanks for the advice.

 

Want stand corrected. I must of found a bad link. But I found Steves LED's Welcome to Steves LEDs, LLC.
Now just have to put the pieces and parts together.

 

Business got in the way (I own my own business also), now I am losing fish. The IP65's, have not figured out how to keep them from flashing, stuck a florescent in place their place, to power scrubber until I can get some good led's going. I know I am greatly under powered.
Here is what I am planning, and please give me any suggestions or changes that you might suggest.

LED's from Steves LED. 6 luxeon ES deep red 2 semiLED 420nm Hyper-violet on each side.
not sure if I need optics on the deep red, guessing 60 degree (figure on ordering 2 extra leds of each)

Heatsink Markers slim (Steve's does not show this) looking at LED supply for source. 6" long will need 2
(between this and the regular one figure this will fit better)

Driver: Leaning towards Meanwell LDD-1000h with LDD Driver Array-2X
second option Steve's double driver.

Power supply. If my calculations are correct I am going to need 19.4 volts and 5800 mA. So I need 112.5 Watts? (these may be over kill)
If that is the case Steve's has a LRS-200-24
Ledsupply LRS-150-24
Looks like $132.
Does it look like I have everything I need? Do you have a better suggestion?
Do you sell on the led arrears? and if so how much and how quick?

Again thanks for all your help. I get this done then I am going to concentrate on a new light for the tank.

Kent

 

it has been a long time since I have calculated values and studied amperage draw. I took the mA of each led and multiplied them times the number of led's giving me 4200 (6 *700) for the red and 1600 (2*800) summed them giving me 5800mA. Looks like I must just take the highest mA.

I was going to ask about wiring in series or parallel. I normally would wire in parallel so that if I lose an led in the circuit I still have the reset. But it appears most are wiring in series.

So on the driers, should I go with the meanwell drivers or the steve's led drivers?

again thanks for all your help.

Kent

 

Starting to understand, it has been a long time since I have looked at current flow, voltage drops, etc. The first time I messed with led's was when I took 4 conventional leds (blue 440) wired them in parallel and took a 12 volt power supply (calculator power supply) to power them. Use them for moon lights. Been running for over 10 years not 24/7. I am planning on adding a dimmer on this also, assuming will need this for a little control.

So what I am going to do is as you did with 1 and 3. wire the 2 blues in parallel first then go to the reds in series. If you see a problem with that let me know.

As I said, my next thing it to look it, is to build a DT setup. I keep looking at the ready made ones and there are a lot of possibilities out there with all kinds of prices. I really like to do DIY, so figure might as well give that a that a whirl also. The only thing on my setup that I didn't build myself is the tank and the heater. Tank stand, overflow (came up with a new one about 6 months ago), sump, algae scrubber, electrical, building it is all part of the fun of the hobby.

Again thanks for all your help. Plan on getting everything ordered tonight.

Kent

 

So I have been doing some studying. first of all I was confused, didn't realize that the LPc-35-700 was the power supply and the driver. So I don't need a separate drivers and power supply, that will work. The only thing is I will not be able to dim the unit, but for my first one I can make this work. Just still use my timer. Unless there is a way to dim the unit?

Correct me where I am wrong. the 2 LED is parallel will pull no voltage, the 6 in series will need 12 volts. the power supply will provide the amount of power needed for circuit, there are no adjustments necessary on the power supply/driver. If those assumptions are true then I would need no resistors for the series circuit but will need a 24 ohm resistor for each of the parallel legs. do I have that figured out correctly?

thanks
Kent

 

diagram of what I am planning on doing

 

Like I said. I spent all evening, reading up on the physics of this and reintroducing myself to electrical circuits. I came across the resistors in a number of the articles and reference material that I read. Of course most of the information I read did not endorse doing the parallel/serial combination, but a few did, makes sense to me. Some of them referenced the need for resistors, on all circuits based on the voltage being feed to them, but then I noticed the power supply you suggested, apperntly is self adjusts to the voltage necessary for the circuit. Looking at that I assumed that it would then be feeding 12 volts to the circuit, based on the draw of the red leds, and therefore I was going to need the resistors in the circuit of the violets, since they were in parallel off of the 12 volt legs. So glad I don't need them, getting harder and harder to find this kind of stuff in small quantities, I used to use radio shack a lot. I have a friend who is a EE, and was going to run it past him. He gets fascinated by some of my projects, he will be home this weekend. (we are working on a solar cell project for our houses currently).

The dimmable was the direction I was originally headed, but for this first project, this will work, and then if I want to change the power supply later I always can. Doing it the way I am doing it will give me a good stepping stone. Your picture was basically what I had envisioned, thanks for that.

Only other question is gauge of wire? Stranded or solid? I am finding suggestion of 20-22 gauge.

Again, thanks for all your help.

Kent