DIY with Quantum Boards

skoomd

skoomd

Well-Known Member
Aolelon said:
I really don't know why you would need a 10k resistor...
Click to expand...
in case the pot wasnt the full 100k, or if you want to squeeze the maaaaax power out of the driver you need over 100k ohms of resistance.

I use that one you linked and mine is 108k ohms, no need to use a resistor for me
 
Philip-O

Philip-O

Well-Known Member
skoomd said:
in case the pot wasnt the full 100k, or if you want to squeeze the maaaaax power out of the driver you need over 100k ohms of resistance.

I use that one you linked and mine is 108k ohms, no need to use a resistor for me
Click to expand...
@Aolelon also to ensure you cannot dim lower than 10% (10k resistance), as going lower is not recommended for some (most? HLGs?) drivers. Don´t quote me on the second part, as that would depend on each driver spec sheet, etc.
 
Aolelon

Aolelon

Well-Known Member
Well when I use the 100k on my strips it only dims it to about 10% I'd say, although I havent checked the resistance of it. I just assumed 100k potentiameter would be rated for that.
 
Aolelon

Aolelon

Well-Known Member
You dont have to solder. You can but the pot I linked has tabs so you can use the little female wire clamps. I can remember the name of them but they work find. Pretty sure it's just a female wire connector. But you have to find one small enough, I had some on hand.
 
pop22

pop22

Well-Known Member
100K should dim to 90% so its either wired wrong of the wrong pot


Aolelon said:
Well when I use the 100k on my strips it only dims it to about 10% I'd say, although I havent checked the resistance of it. I just assumed 100k potentiameter would be rated for that.
Click to expand...
 
ANC

ANC

Well-Known Member
It is not that hard to solder... there is one little secret ingredient to the process that people often don't get taught about...
Buy solder flux and use it on the wire you want to solder.
It firstly strips oxidized crap off the metal surface leaving a good bonding surface that won't reject the lead, it also acts as a wetting agent making the solder flow rather than run off in balls.
If you solder, you can use heat shrink and move it over the joint for a seamless joint.

You can do it.
 
619kt619

619kt619

Well-Known Member
Aolelon said:
You dont have to solder. You can but the pot I linked has tabs so you can use the little female wire clamps. I can remember the name of them but they work find. Pretty sure it's just a female wire connector. But you have to find one small enough, I had some on hand.
Click to expand...
Ah yes female crimp connectors. Those are a good option if you mount the pot in a junction box. If they are moving around a lot those will eventually come loose. I would hate to have my light cycle get messed up due to a loose connection.
 
L

lawlzcake9000

Member
If I were to go to a metal shop and ask them to cut me a custom alum for the backplate/cooling of my LED strips.. how thick should I tell them? 1/8"? 3/16"? Also should I do sheet or plate? Thanks!
 
nfhiggs

nfhiggs

Well-Known Member
lawlzcake9000 said:
If I were to go to a metal shop and ask them to cut me a custom alum for the backplate/cooling of my LED strips.. how thick should I tell them? 1/8"? 3/16"? Also should I do sheet or plate? Thanks!
Click to expand...
Thickness is not relevant to cooling ability - that's determined by the surface area. Thicker material will just take longer to reach temperature stability, but the final stable temp will be the same.
 
Aolelon

Aolelon

Well-Known Member
Most people use U channel for the heatsinks, but I dont see why aluminum plating wouldn't work as well.
keepsake said:
Cool thanks. Just ordered it.
Not sure what exactly to do when it arrives but Ill try to figure it out when it does.
If I can't, I'll ask here again lol.
Unless you wanna tell me now beforehand? That'd be great. Thanks in advance
Click to expand...
Nothing to it, solder one dimmer lead to the first plug on the left, solder the second one to the middle. You cant mix up the wires, if you do the only thing that changes it is the way you have to turn it to dim it.
 
Rocket Soul

Rocket Soul

Well-Known Member
Hi Hlg and everyone. What is the recommended hanging and spacing and coverage if you are running your qbs at 60w - 80w each in a matrix over a large cannopy?
 
619kt619

619kt619

Well-Known Member
keepsake said:
Cool thanks. Just ordered it.
Not sure what exactly to do when it arrives but Ill try to figure it out when it does.
If I can't, I'll ask here again lol.
Unless you wanna tell me now beforehand? That'd be great. Thanks in advance
Click to expand...
This is a tutorial from @ledgardener. Check out his stuff, lots of good content on his page

 
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