educate this idiot (led diy)

[karimwassef]

I can't tell how they're connected from the pics.

I also don't see how 13.2V is feeding 10 LEDs. Something isn't adding up. I'd start with a blank piece of paper a map what you've got first.

I'd use a good fixture to check the voltages across the LEDs too.

 

[agreeive?fish]

yes the voltage was wrong...i checked the voltage for the cooling fan...the voltage for the led is 49.9 for each light string...

yeah..iam gonna do that (map out working fixture) after dinner..and see what i get...check one bad fixture and i have continuity on all connections so iam not sure what the issue is there..but i got laid off my oil filed job Tuesday and start the replacement job Wednesday and no kids or wife home during school hours on Monday and Tuesday so ill have plenty of uninterrupted time to work on the lights(if i dont spend all night tonight on them lol)

 

[oreo57]

yes the voltage was wrong...i checked the voltage for the cooling fan...the voltage for the led is 49.9 for each light string...

yeah..iam gonna do that (map out working fixture) after dinner..and see what i get...check one bad fixture and i have continuity on all connections so iam not sure what the issue is there..but i got laid off my oil filed job Tuesday and start the replacement job Wednesday and no kids or wife home during school hours on Monday and Tuesday so ill have plenty of uninterrupted time to work on the lights(if i dont spend all night tonight on them lol)

Is this your light??
http://www.ocreef.com/ocreef_xp-e_a...quarium_light_with_3_watt_high_intensity_leds

http://www.eshinesystems.com/aquariumlight/60w-cree-led-aquarium-light.htm

The LEd's look like each is in parallel.. Seems goofy..
I'd strip the LED's out, or at least string them in series bypassing the trace.

 

[agreeive?fish]

oreo57..yes those are my lights

well they are wired(attached to the circuit-board) in series as far as i can tell..i got 2 of the 3 broken ones up and running(bad connection). haven't started on the last one yet...now iam wondering if i can put these lights on a ramp up/down timer..they are manually dim-able from the factory.

 

[karimwassef]

If you know how they're wired and there are no loose wires, you may be able to substitute the power supply for a runnable version

 

[agreeive?fish]

thanks for the help...i got them up and running...man its been a while since i globed on a batch of solder

 

[karimwassef]

Runnable = dimmable.

Love the iPhone auto correct feature.

 

[agreeive?fish]

Love the iPhone auto correct feature.

LOL x10

 

[spicytofu]

So what was the problem? If you need an auto dimmer, you will need a controller that can adjust the duty cycle of the PWM or the analog input voltage, if the meanwell has an analog input option. Either way, you will need a microcontroller to do that.

 

[karimwassef]

His current fixture has a basic external power supply (not a meanwell) and the connections in the fixtures aren't working. He can get a dimmable power supply but needs to map out the LEDs first to determine the rating.

He also needs to fix the fixture or rewire the LEDs.

 

[agreeive?fish]

His current fixture has a basic external power supply (not a meanwell) and the connections in the fixtures aren't working. He can get a dimmable power supply but needs to map out the LEDs first to determine the rating.

He also needs to fix the fixture or rewire the LEDs.

all fixed and working properly

 

[perkint]

all fixed and working properly

Now you just need to strip them down again and re-wire them to get them running on an automated controller

Tim

 

[karimwassef]

No. Just share the connectivity map and voltages and we can probably find a power supply or supply+driver to get the job done.

 

[oreo57]

Now you just need to strip them down again and re-wire them to get them running on an automated controller

Tim

OR do like the Kessil hack and put the pots on steppers....
i'm not convinced they are in series.. There would be no need for the 2 buss bar sets. something doesn't make sense..