gddg
Well-Known Member
This is for the teknik deep red i have the Cree XPG-3 Deep Red, although it’s only a 0,2V difference
parallel wiring led strips without wago's?
- Thread starter gddg
- Start date
Boatguy
Well-Known Member
You did solder those connections after you twisted them together right? With the number of connections you have there just twisting and heatshrinking is pretty unreliable
I'll try again. Your driver can put out 36 volts. You need over 38 volts for full power.
Boatguy
Well-Known Member
Still doesnt make sense that he cant run those strips any higher than he is. At .5a per strip that driver should be cranking along at just under 36v.
The .2a thing is strange
Yes, you should know your shit before giving advice.
Ohms Law would be a good start! Wire resistance is NOT irrelevant!
That 480w driver puts out 13 amps. 13 amps through 2 ohms of wire resistance will give you a 26 volt drop across that wire! 13 amps x 26 volts would be 338 watts being dissipated in that 2 ohms of wire!
There could be more than one issue, like a small voltage drop through a current shunt in the meter.
Rocket Soul
Well-Known Member
Please note that cutters voltage/amp numbbers are for tekniks 660 reds. Uv diodes and purple are usually a bit higher voltage than reds. That driver, with no voltage regulation wont reach enough voltage to feed those strips anymore current cause they run aa bit higher voltages. A version, or AB version, or xlg-h version should all work.
The diodes have nothing to due with calculating the voltage drop of the wire. If anyone is interested in better understanding, do a search for
"basic dc circuits".
cobshopgrow
Well-Known Member
its a B type driver no A or AB type.
"VOLTAGE ADJ. RANGE - Adjustable for A/AB/C-Type only " from the datasheet.
youre stuck with the constant current region the driver offers with B types, 18 ~ 36V .
you will need the adjusment option to be able to go in between CC region and voltage protection.
at about 36V he leaves the constant current region, with B type you cant leave it, see above.
CC or CV mode arent directly related to series or parallel.
As 1212ham say its a clever idea to skip the meter on the output and see if it will be enough, if not order a new driver.
XLG 240 H should be the cheapest option.
cobshopgrow
Well-Known Member
the driver will regulate itself in between 18 and 36V BUT its a 6.7A driver.
so if you connect one strip it regulates to 6.7A for this one strip!
Boatguy
Well-Known Member
You should really stop trying to help...@gddg You want it in constant voltage mode. I skimmed through the datasheet, and unless I misunderstood something, dimming is only available in CC mode. So if you can figure out how to run it in CV mode you should be good.
Good luck brother
Not arguing, but I'll add this. The driver is limited to 6.7 amps, but that strip needs over 38v to draw 1400mA, so it's quite safe.
Mak'er Grow
Well-Known Member
just don't stare at the LEDs ...when powered
Boatguy
Well-Known Member
Doesnt the overvoltage limit apply across all series drivers? I assumed, but have no real knowledge otherwise. Thought there would be some wiggle room even in the b-type
cobshopgrow
Well-Known Member
seems to be the only wiggle room on this b type driver is the 0.37V over 36V otherwise the uv leds would had happily taken it.
you cant do much about it with b types then to stick within their regions.
edit:
thinking of it further, the driver is in some kind of safe mode, there is maybe some more room then the 0.37V, just not enough so he falls back in to this mode.
0.37v seems a bit low, a volt should be doable or such, youre right.
you cant do much about it with b types then to stick within their regions.
edit:
thinking of it further, the driver is in some kind of safe mode, there is maybe some more room then the 0.37V, just not enough so he falls back in to this mode.
0.37v seems a bit low, a volt should be doable or such, youre right.
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cobshopgrow
Well-Known Member
true true, for that example, but wont be true if he connect one strip of his 660nm/whites, they would get the 6.7A so better to bust the myth.
and, hey i wrote in between 18-36V
therefore.the solution is clear to us both, haha.