educate this idiot (led diy)

[agreeive?fish]

iam an idiot so i need some guidance..i got 60 three(3)watt cree dim-able leds from a reef light that the circuit boards are bad...i want to take these led (30 blue/30 white) and make my own fixture..i want them to run on a timer with ramp up and ramp down....what power-supply and ramp timer(programmable) do i need to run all 60 lights..of course i want the blue and white on separate circuits/controllers...EDUCATE ME THE LIGHT IDIOT

 

[TheYellowSnow]

So you want someone to teach you everything instead of hitting up goggle? Nice!

 

[agreeive?fish]

nope iam just looking for what others on reef central have used..iam also using google and got an email out to a friend who build led stage lights for a hobby...so iam using multiple avenues to obtain some education on what i want to do...just not the best at electronics..more adapt to sheet metal and mechanics of things i can see(nuts/bolts)

 

[Aqualund]

So you want someone to teach you everything instead of hitting up goggle? Nice!

Completely unnecessary.

 

[perkint]

Which LEDs are they? The set up i would suggest is a single power supply using meanwell LDDs to supply constant current to the LED strings (probably 2 strings of white and 2 strings of blue, so 4 LDDs). With an arduino to give the PWM signal to the LDDs for dimming (arduino needs an RTC to do timed ramping up and down). And obviously a decent heat sink to mount it all to!

But, without knowing which LEDs, it's hard to know what the best drive current is (so don't know what LDDs to get) or what the fV is of the LEDs at that current (you know, that current which is currently not known) so you don't know how many LEDs you'll be able to put in a single string or what power supply you need.

Tim

 

[karimwassef]

Which lights? Who makes them? Do the power supplies work?

Take pictures so we can help.

 

[agreeive?fish]

the original fixtures are starkled, the sticker on the fixture list the following info cree led aquarium light input voltage ac 100-240v, frequency 5-60 hz input current .25-.6amp

the power-supply work and the info listed is cree led power-supply esw4c792
model escw-ca60 input volts 100-240v frequency 50-60hz output current 1.8 a max

the only markings on the cree led itself is cree xp

here are the specs for the version2.0 mine is probably the ver1.0 but i haven't found that info for a positive assumption or determination

Technical Specifications
Item No.
SK-60W-02
Power Consumption
60W
LEDs:
10x3w White & 10x3w blue
LED Type
CREE XP-E & XP-G
Input Voltage
AC85 ~ 260V
Input Current
0.28~0.46A
Operating Freq.
50Hz~60Hz
LED View Angele
80 Degree
Operating Temp.
-4F to 140F
Dimensions
15.7”x5.5”x2.5”
Weight
12.7 lbs.

 

[NanoReefWanabe]

so, you have a working power supply, and as far as you know working LED array, and you want to control the power to the less..?

you say the circuit boards are bad…does this mean the drivers are bad? or the circuitry to the leds?

i assume you want drivers, to control the LEDs, i am sure you will need about 6 LDD mean wells and you should be golden, there are several people far more apt at their stuff then me and i am sure they will chime in.

 

[JimSWreef]

So you want someone to teach you everything instead of hitting up goggle? Nice!

That's what forums are for....

 

[karimwassef]

Are you going to buy a new power supply or do you plan to reuse what's in the fixture?

If you're planning on reuse, you need to find out what power supplies and drivers are inside and whether they still work.

 

[karimwassef]

It might be easier to fix the fixture's circuit board or retrofit it than to start over on a DIY

 

[agreeive?fish]

well the power supply are good (tested on another fixture) the leds are good checked with a diode checker...so the only other component left is the circuit board in the fixture so thats got to be whats bad...the power supply are MANUAL dimmable so i dont know if the are "reusable" with an auto ramp up/down set up which is what i want....no big $$$ loss if i cant/dont fix them there is more alluminum in scrap $$$ than i paid for the fixtures including the working one(i got 4 total..1 100% working and 4 power supplies that work and 3 that aparently the circuit board in the fixture is bad)...power supplys are EXTERNAL

 

[oreo57]

well the power supply are good (tested on another fixture) the leds are good checked with a diode checker...so the only other component left is the circuit board in the fixture so thats got to be whats bad...the power supply are MANUAL dimmable so i dont know if the are "reusable" with an auto ramp up/down set up which is what i want....no big $$$ loss if i cant/dont fix them there is more alluminum in scpar $$$ than i paid for the fixtures including the working one(i got 4 total..1 100% working and 4 power supplies that work and 3 that aparently the circuit board in the fixture is bad)...power supplys are EXTERNAL

Power supplies?? 2?
What is the DC voltage out?
First things first..
10 LED's per power supply??

You need to be a bit more specific since no "specs" are found for a "CREE" power supply..yet

 

[agreeive?fish]

Power supplies?? 2?
What is the DC voltage out?
First things first..

it dont say..ill see if i can find out using my multi meter...who knows i might blow it up in the process..lol

 

[agreeive?fish]

output voltage is 13.2 at max intensity setting( per dim switch)

there are 20 leds per power supply...10 white on one manual dimm switch and 10 blue on the other dim switch

 

[karimwassef]

Can you take a picture of the bad circuit board with the parts on it?

 

[agreeive?fish]

i can TRY my camera skills are the worst in the whole world..lol

 

[agreeive?fish]

1st 3 pics of light

last 2 pics are of powersupply

 

[karimwassef]

Doesn't look like there's much of a circuit board. Since you have a good fixture and a bad fixture. And since it's running low voltage, I'd start by tracing the source of the failure. You may just have a loose solder joint or a bad switch somewhere. If you want to change the power supply, you need to map how the LEDs are connected first.

Changing the powersupply and rewiring the LEDs is a big project.

 

[agreeive?fish]

Doesn't look like there's much of a circuit board.

Changing the powersupply and rewiring the LEDs is a big project.

to me it looks like the circuit board is nothing but a contact point for the leds to plug in in the series circuit...if thats so what would be the issue with just wiring the leds in series bypassing the circiut board?