I think you meant 7S2P. 7 strips in series=136.5V, 2 strings in parallel = 0.7A to each. Would give you 191watts of light.Driver is 185h-c1400a
Have a large number of Bridgelux Eb Gen2 strips 560/2 footers.
Looking at running 12-14 in 2s6-7p for 150-175 watts. Any issue with this?
Yeah, that's what I meant. Thanks for the correction. I was looking at either 7s2p or 6s2p.I think you meant 7S2P. 7 strips in series=136.5V, 2 strings in parallel = 0.7A to each. Would give you 191watts of light.
You can do either, the driver can handle it. 7s2p gets you more power if your grow can handle it, 6S2P gives 164watts.Yeah, that's what I meant. Thanks for the correction. I was looking at either 7s2p or 6s2p.
have you ever heard about curtains ?6% its not so visible
as i like it simple - i would wire 3 conventional ( ~ 300Wp each ) pv modules in a row.how to power Quantum boards with alternative energy?
have you ever heard about curtains ?
what function each one has
This driver has adjustable voltage and current, I think that is not the problem.
Your driver delivers 14,3A - so each of your 16 leds will receive ~ 890mA - that`s too much.
Buy more chips and understand, that driving your leds @ low current increase
light efficiency and longlife. Half current means a plus of ~10% lumens / watt
The dimmer leads need to have high resistance(over 100k) for the driver to go to full power. Leads need to be disconnected for max output. Connecting the leads will reduce output to minimum.View attachment 4220267
Built this light last grow. As per this diagram.
Last grow it seems i could remember getting up around 40-50k lux no problem.
This time i installed a dimmer. I didnt put a 5w resister tho like they suggested . Not sure where to put my leads to test if im getting the full power through my dimmer or not.
Seems i can only max out around 23k lux this time . Tested with two different phones . Its been reliable so far.
Any ideas ? Maybe the dimmer needs a resister to bring it up to the correct amount?
--any ideas where to find one fast in a small town??? . Theres some smaller hardware stores and stuff around. Not sure what to look for...
I also too the dimmer off and connected those two leads together.
Only got about 7k lux. Wtf shouldnt it be full power without the dimmer ?
View attachment 4220268
@Randomblame
@Serva
@nhfiggs.... Miss ya buddy. R. I. P
Disconnect dimmer leads for max power!?The dimmer leads need to have high resistance(over 100k) for the driver to go to full power. Leads need to be disconnected for max output. Connecting the leads will reduce output to minimum.
Been on for 20mins. Its barely warm
10 inch distance.
Then a 6 inch distance
My phone maxes out at 50klux
Do i run the risk of thermal runaway?
Dont want to burn the house down.
View attachment 4220683 View attachment 4220684
View attachment 4220685 View attachment 4220686
125v ac
When i bought it, i looked for one that was 100kohm
You should have a little gofund me donation box in your sig.Hey buddy! All good for ya?
No, you don't need to worry there is no risk of thermal runaways. You need a lot more current and a possibly voltage of maybe 23v to reach the dangerous zone with EBgen2 strips. With a 20v driver its only possible when you take the A version and set the voltage to max settings. With your driver its perfectly safe and your strips run anyway in constant current mode with 19,6v.
For dimming I recommend this 6$ dimmer from rapidled simply because it use 0-10V dimming without the need of an additional 10v power supply. It works with the little current flow on the dimming output (100μA typ., see screeny below) of the driver and you always get the full driver power without modified 108k poti, additional resistors or disconnected dimmer wires. I have used a simple on/off switch next to the poti to disconnect the dimming circuit in my first build. Without testing the true resistance this poti could have only 80k or so. Do you have a multimeter to check resistance when full turned open? But you need to disconnect the dimmer wires befor testing otherwise you would measured the driver output.
https://www.rapidled.com/cased-potentiometer-with-knob/
That's the dimmer, just two wires to connect. Seems relatively new cuz to date I've not seen them anywhere else..
View attachment 4220936
And here is the corresponding part in the datasheet..
View attachment 4220938