Help buying and building my first cob light.

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Mike10gs

Member
homegrown365 said:
Nice rig ya got going. My only suggestion would be to bring the COBs in 1.5" to 2"from the sides. Losing light footprint to the sides of the tent. For vegging....if no dimming available, keep height min. 18"-24". Lookin good!!!
Just my opinion.
Success w/ya grow!!!
Stay safe!!!
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My tent is 24"x24" I made my frame 20"x20". I did add dimmer on it and have it at 50w and 18" to 20" from the plants.
 
M

Mike10gs

Member
1212ham said:
I makes absolutely no difference, potentiometers have no polarity. It will work as long as one wire connects to the center terminal on the pot and the other wire connects to a terminal on either side of the center terminal. Wired as shown, turning clockwise is brighter. If the wire were moved from the right side of the pot to the left, turning clockwise would be dimmer.
Click to expand...
Thank you. I was able to figure it out.
 
M

Mike10gs

Member
Hey guys so what does the resistor do that goes to the potentiometer. I have it plugged to my watt meter and when I try to dim it up. It does not let me go past 50watts. Is that what this is for or did I do something wrong.?? Tripping me out. It does dim down to about 20watts.
If someone can comment on this is appreciate it thanks
 
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