LED AFTERGLOW

[Rocket Soul]

Ok, the thread is the algorithm

But....

I know that by time there will be more posts of people asking questions and blaming anyone between light manufacturers, God and the neighbours

 

[Absorber]

Ok, the thread is the algorithm

But....

I know that by time there will be more posts of people asking questions and blaming anyone between light manufacturers, God and the neighbours

% thats where the feature might be helpfull for people in the future .

 

[Rocket Soul]

% thats where the feature might be helpfull for people in the future .

I like keeping a few good threads when peeps ask me and referring: thats why i asked for one final post above but i agree its not easy to get everything into one post or answer. I get the same with "Tell me a bit about diy led" and i just start wondering if its going to be me or the questioners eyes glazing over with the "too much..."-look first

 

[Absorber]

I like keeping a few good threads when peeps ask me and referring: thats why i asked for one final post above but i agree its not easy to get everything into one post or answer. I get the same with "Tell me a bit about diy led" and i just start wondering if its yoing to me or the questioners eyes glazing over with the "too much..."-look first

 

[4maggio]

Well, I don't know squat about electricity, cept it'll kill ya. Since I first noticed afterglow of this light, I've had more miscues in this one grow than in 5 of any others. Wrapping my head around the use of a controller and VPD caused : once light stayed on for 20 hours before realizing it happened. Kept lights OFF for 24 hours. Again later lights stayed on for an extra 6 hours.. And again 3-4 hours a third time. Couple times forays into the mid 90Fs for most of a day and many light on in dark time happenings.. all in the 2nd to 5th week of bloom nd other miscues. BUT! no signs of hermis or seeds.. Tooka bud last week (day 41 bloom, clear to cloudy trichomes) no sign of seeds. Yes EVERONE agrees some part of my household electrical ground is funky. But I did nothing and afterglow persists.. Might it be possible that afterglow might help sensitize the plant to light discrepancies? Or am I puffin up too much?

 

[Ca++]

If the afterglow isn't enough to read a book, then the plants may of seen it as nothing more than moonlight.

Something must be happening around your home, or even one nearby. Some sort of ground offset, where it's not at neutral potential. Perhaps you use a ground rod, rather than the neutral conductor at the service intake. A shot of that main fuse could be useful. If an earth wire comes out that big block, I would be surprised. Perhaps instead, the big earth from your fuse board, just ties to some pipework that used to go outside, but it's now plastic in the street. The question would then become why anything is actually sending power to ground. It's often a PC, just doing what it should do. Though to be lighting your lights, this suggests no earth leakage disconnection device. I would like a look in person tbh, it's interesting. It's not worth a flight though.

 

[4maggio]

If the afterglow isn't enough to read a book, then the plants may of seen it as nothing more than moonlight.

Something must be happening around your home, or even one nearby. Some sort of ground offset, where it's not at neutral potential. Perhaps you use a ground rod, rather than the neutral conductor at the service intake. A shot of that main fuse could be useful. If an earth wire comes out that big block, I would be surprised. Perhaps instead, the big earth from your fuse board, just ties to some pipework that used to go outside, but it's now plastic in the street. The question would then become why anything is actually sending power to ground. It's often a PC, just doing what it should do. Though to be lighting your lights, this suggests no earth leakage disconnection device. I would like a look in person tbh, it's interesting. It's not worth a flight though.

No, Ca, can't read a book under it and it glows red/pinkish.. if it's not gonna affect the plants life style/sex why would I fix it? Am I more susceptible anything bad or more costly with a faulty ground? I will get to a pic of the panel and would appreciate anything you might see.. when I post it. thanks Ca

 

[greyfader]

hey buddy! sounds like something wrong with your house wiring. that could be very hard to find. i moved out of an old 1940's farmhouse last year that had metal sink traps. i was working on the water line to one of the sinks and i touched the metal trap with a pipe wrench and it sparked. scared the shit out of me. i do own a volt/ohm meter and began checking everything but never did find what was causing it before i moved out.

i think @Hiddenjems mentioned using a relay to positively cut all power to the lights.

i've been using these to control lights for years;



they are built like trucks. 40 amp contact rating. this one has a 120volt solenoid so it can be hooked to a cheap timer. i would put one on the power supply to the lights.

i've been using these timers from amazon for 3-4 years. very reliable and can be programmed for any cycle you like.

they wouldn't let me copy the url so i had to do it the hard way.

Outlet Timer, NEARPOW Multifunctional Programmable Timer with Countdown and 7-Day Digital Infinite Repeat Cycle Intermittent, 19 ON/Off Programs for Electrical Outlets, 3 Prong, 15A/1800W​

 

[chilliwilli]

If the afterglow isn't enough to read a book, then the plants may of seen it as nothing more than moonlight

I think that depends on the genetics.
Some( 10 iirc) years ago i got some jamaican bagseeds and manipuri turn hermie from the red glow shining from the switch of a power strip.
First i thought it's just one plants genetic but the other turned hermie within a few days standing on the place of the first. When i went in during dark phase to check for lightleaks i barley noticed the faint red glow from the switch. Put some duct tape over it and no more hermies.

 

[4maggio]

I think that depends on the genetics.
Some( 10 iirc) years ago i got some jamaican bagseeds and manipuri turn hermie from the red glow shining from the switch of a power strip.
First i thought it's just one plants genetic but the other turned hermie within a few days standing on the place of the first. When i went in during dark phase to check for lightleaks i barley noticed the faint red glow from the switch. Put some duct tape over it and no more hermies.

I've encountered that type of light leak and yes it produced hermi flowers. Afterglow hasn't produced any hermi traits.

hey buddy! sounds like something wrong with your house wiring. that could be very hard to find. i moved out of an old 1940's farmhouse last year that had metal sink traps. i was working on the water line to one of the sinks and i touched the metal trap with a pipe wrench and it sparked. scared the shit out of me. i do own a volt/ohm meter and began checking everything but never did find what was causing it before i moved out.

i think @Hiddenjems mentioned using a relay to positively cut all power to the lights.

i've been using these to control lights for years;



they are built like trucks. 40 amp contact rating. this one has a 120volt solenoid so it can be hooked to a cheap timer. i would put one on the power supply to the lights.

i've been using these timers from amazon for 3-4 years. very reliable and can be programmed for any cycle you like.

they wouldn't let me copy the url so i had to do it the hard way.

Outlet Timer, NEARPOW Multifunctional Programmable Timer with Countdown and 7-Day Digital Infinite Repeat Cycle Intermittent, 19 ON/Off Programs for​

I'm using AC Infinity controller for this grow. I was using a mechanical timer for lights but this controller seems to be doing the ONs and OFFs very nicely. Using a mechanical time didn't change the afterglow phenomenon. Unless after the cut I find seed city sown under I'm not going to change anything right now. Although I will take a pic of my electrical panel for Ca to observe.
Your PPK is my weapon an it is Killer. I can't thank you enough. I have their AI controller coming today.. that will be interesting. Running the PPK on standard 600ppm nutes, no add backs and no worries about PH, makes the grow less demanding of attention.

 

[greyfader]

I've encountered that type of light leak and yes it produced hermi flowers. Afterglow hasn't produced any hermi traits.

I'm using AC Infinity controller for this grow. I was using a mechanical timer for lights but this controller seems to be doing the ONs and OFFs very nicely. Using a mechanical time didn't change the afterglow phenomenon. Unless after the cut I find seed city sown under I'm not going to change anything right now. Although I will take a pic of my electrical panel for Ca to observe.
Your PPK is my weapon an it is Killer. I can't thank you enough. I have their AI controller coming today.. that will be interesting. Running the PPK on standard 600ppm nutes, no add backs and no worries about PH, makes the grow less demanding of attention.

does the light still glow when you unplug it? sometimes the phosphor coatings will glow for a while after power is cut. this is called ghosting.

"Using a mechanical time didn't change the afterglow phenomenon" this seems to indicate that it is not your controller causing the problem.

try unplugging it and if it still glows it could be the ac/dc transformer in the light.

"While a transformer itself isn't designed to function as a capacitor, due to the physical arrangement of its windings, it inherently exhibits a small amount of "parasitic capacitance" between its turns and layers, meaning it can act like a capacitor to a certain degree, although not with the same storage capacity as a dedicated capacitor; this capacitance is usually considered an unwanted side effect in most transformer applications"

 

[4maggio]

does the light still glow when you unplug it? sometimes the phosphor coatings will glow for a while after power is cut. this is called ghosting.

"Using a mechanical time didn't change the afterglow phenomenon" this seems to indicate that it is not your controller causing the problem.

try unplugging it and if it still glows it could be the ac/dc transformer in the light.

"While a transformer itself isn't designed to function as a capacitor, due to the physical arrangement of its windings, it inherently exhibits a small amount of "parasitic capacitance" between its turns and layers, meaning it can act like a capacitor to a certain degree, although not with the same storage capacity as a dedicated capacitor; this capacitance is usually considered an unwanted side effect in most transformer applications"

No brother, if it is unplugged the afterglow goes away.. (DARK in there)..too many here at ICMAG and here where I live all say similar things.. ground is whacked. I'm not talented enough to even understand some of the electrical advice I've gotten.. getting an electrician in to analyze is tricky in Florida. No seeds, no problem..

 

[greyfader]

No brother, if it is unplugged the afterglow goes away.. (DARK in there)..too many here at ICMAG and here where I live all say similar things.. ground is whacked. I'm not talented enough to even understand some of the electrical advice I've gotten.. getting an electrician in to analyze is tricky in Florida. No seeds, no problem..

i'm just mentally trouble shooting to isolate the problem. in this case, until you can solve the ground problem with your house maybe you should run the light ungrounded.

the old house i moved out of had ungrounded 2 prong outlets and i had modern 3 prong cords on the household appliances. i didn't want to cut the cords so i used these things from walmart.

$2.47 for a 2 pack in the lighting aisle.

i ran a refrigerator, washing machine, and tv's, computers, and lights using them with no issues.

while it is safer normally to run grounded i don't think this is any less safe than having a malfunctioning ground leaking current.

if the lights are powered through the controller maybe put one on the controller cord.

i'm assuming you are using 120 volt for the light.

 

[4maggio]

i'm just mentally trouble shooting to isolate the problem. in this case, until you can solve the ground problem with your house maybe you should run the light ungrounded.

the old house i moved out of had ungrounded 2 prong outlets and i had modern 3 prong cords on the household appliances. i didn't want to cut the cords so i used these things from walmart.

View attachment 19107100

View attachment 19107101

$2.47 for a 2 pack in the lighting aisle.

i ran a refrigerator, washing machine, and tv's, computers, and lights using them with no issues.

while it is safer normally to run grounded i don't think this is any less safe than having a malfunctioning ground leaking current.

if the lights are powered through the controller maybe put one on the controller cord.

i'm assuming you are using 120 volt for the light.

Now that's the technical advise/device I need and understand.. great idea.. even have one on hand..
I'll get back to you after lights out. You're the bomb 9.

 

[4maggio]

i'm just mentally trouble shooting to isolate the problem. in this case, until you can solve the ground problem with your house maybe you should run the light ungrounded.

the old house i moved out of had ungrounded 2 prong outlets and i had modern 3 prong cords on the household appliances. i didn't want to cut the cords so i used these things from walmart.

View attachment 19107100

View attachment 19107101

$2.47 for a 2 pack in the lighting aisle.

i ran a refrigerator, washing machine, and tv's, computers, and lights using them with no issues.

while it is safer normally to run grounded i don't think this is any less safe than having a malfunctioning ground leaking current.

if the lights are powered through the controller maybe put one on the controller cord.

i'm assuming you are using 120 volt for the light.

OK! Put said adaptor in place and no more afterglow.. GreyFader, simplicity plus.. thank you again.. So yes my household ground isn't right.. (didn't know it was wrong for 25 years) eliminate the ground and presto.. NOW, was the afterglow detrimental? I'll see in a week or two.

 

[greyfader]

OK! Put said adaptor in place and no more afterglow.. GreyFader, simplicity plus.. thank you again.. So yes my household ground isn't right.. (didn't know it was wrong for 25 years) eliminate the ground and presto.. NOW, was the afterglow detrimental? I'll see in a week or two.

cool! some plants are more sensitive than others. i think i'd be more worried about the ground damaging the light somehow.

 

[4maggio]

Now you tell me! I like a new light occasionally.