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asa77sol
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Hi alkalien,
Wow 1st Hydro and 1st LED at once, you are brave indeed!
I did the very same thing when I switched, btw. that's how I know.
Ran into the same Mg def in veg, K in veg and flowering. I now have separate Cal and MG solutions so I can balance the nutrients without adding extra N that's in CalMag. I'm hoping a more detailed discussion of nutrients will follow our treatment of lighting per se. I think we are wrapping up light quantities and strengths and ready to move on to qualities, but who knows what direction this thread may take.
Thanks for your input!
H.G.
...Necrosis of plant tissue is not evident at these locations.
Any experience here with LED flowering lag?
Thank you for the info, but it actually raises more questions for me. It was my understanding that only blue and white LED's could be on the same circuit together because they had the same forward voltage. I thought that if a 1.15 v red led was in series with a 1.5 v blue led only the reds would light, I guess that is incorrect?
I have used Cree and Osram GD+ so far and at 600mA I get:Do you know what is the voltage of the different leds used?
LEDs drop your string voltage as you add more. Meaning if you have a 12V driver you can run eight 1.5V LEDs. Add up the voltage of the LEDs Vf until you reach your driver voltage. You can then run parallel strings of the same size until you use up all the power of the driver. Running in parallel splits the total current though. So running two parallel strings off of a 1A driver will give 500mA roughly on each string.Do you know if 1.15 v and 1.5 v leds are in series, do they all run at 1.15 v or 1.5 v?
...LEDs drop your string voltage as you add more. Meaning if you have a 12V driver you can run eight 1.5V LEDs. Add up the voltage of the LEDs Vf until you reach your driver voltage. You can then run parallel strings of the same size until you use up all the power of the driver. Running in parallel splits the total current though. So running two parallel strings off of a 1A driver will give 500mA roughly on each string.
great idea about the fuses, I missed your answer, I got 2 answers so fast about this.Hey OGmolton,
thats exactly how I wired them.
The voltages are not important, they just add up when wired in series. Just make sure they are lower than the output of your driver. When you want to drive more than one string parallel they must be identical, otherwise the current would be different for the strings. If they are identical, the current will split up equally. Make sure the current is not too high for any LEDs you got on your strings. I run my red and blue ones with about 650mA and the white ones up to 3A. In every string the current is constant, so don't put LEDs not ready for this current in the string, the weakest LED will determin the current for the string.
I put fuses in front of any row to make sure I don't overpower them.