Permissible light leakage during flowering?

[spazspaz]

“I feeeeel like.....”

 

[Hephaestus]

All good brother - happy to wonk out on the physics with you just dont want to derail thread.

Now i know this is for a weed display kinda system its got me thinking Hep. So im clear you want a vendor display kinda arrangement to show of your plants. You only want to see them during their daylight cycle. If this is correct could you use a mirror film filter on the glass specified to cut out the full light amount of light from the viewing room-standard room lighting is low intensity compared to the grow room, so transperancy wouldnt be an issue during the plants night cycle. When the lights were on you would see the plants in detail as they would be in higher intensity light with some light losses.

Pretty much we're legal now - why the heck hide it in a closet...

My personal grow - kitchen counter right next to the sink - easy for maintenance. Something to look at while I'm cleaning up. Seems like I live there anyways.

My thought was a heavy window tint anyway - 35% I pulled out of the closet from tinting the car window seemed to knock down my 50w led to not painful range...

The PDLC when powered down allows 35% through for the original white, havent seen datasheet on the new black (or it even being available) or the other colors.

The PDLC stuff is cool, microcontroller will be setup to make it run clear only in daylight by user input. So it could be opaque for security or just power savings.

 

[Flying Monkey]

Like i say you dont need any light penetration from your side to see the plants during their daylight period. Theres simple filters like the film your talking about to do this. I always like lowest tech possible to do the job. Complexity is just more oppotunites for something to go wrong. If you want to flick it on and off then PDLC would be suitable if pricey. If it was me id still exclude the light level from the viewers side to prevent human error. If your kitchen has variable lighting levels i.e with windows rather than internal lights the glass would need to exclude the max light at brightest time of year to prevent fuck ups. Also PDLC EXCLUDES light when
its unpowered so any efficiency gains would have to be measured by the lighting losses through the film when on versus the cost of driving the film. White would be best as it would allow the maximum light to be retained in the box for the plants rather than being absorbed by the film. Hope thats helpful. Good luck with it.

 

[siftedunity]

None intended - just saying different environment. Comparing to outdoors doesnt always apply...

Pretty much all the weed I grew up on was outdoor vancouver island goodness which beats the hell out of the "big pharma" crap that i can legally buy.

The strains we have today bear little resemblance to wild types. So comparing to nature doesnt get us far - these are man made hybrids with crosses that could never occur in nature.

But none of that really relates to the whole point which was do we have any hard technical data on where the risks start.

apart from the fact that we try to recreate the perfect natural outdoor conditions indoors
I know what your saying about wild vs domestically bred but i'll agree with what schmavis says. if you have stable selections, I doubt you would get them to herm or throw loads of seeds unless you really messed up their light schedule. I think its one of those myths that's gone around for years.