Homer's Legal 4-Plant Max Perpetual Minimalist Garden In Ontario

[Pennywise]

Lol yep it's a valuable lesson.

 

[Homer Simpson]

Lol yep it's a valuable lesson.

Only thing I plan on changing is to increase my light intensity because I am only putting 200W through my MegaLight and it takes 600W. My little blurple I replaced it with was actually 260W so I am pretty sure the plants want more light but I will do it slowly over grows. I am going to keep it at 200W till my OG is done.

 

[Homer Simpson]

Only other change I am looking for is better genetics...

 

[Pennywise]

Good plan, they can take a lot of light in bloom

 

[Homer Simpson]

Good plan, they can take a lot of light in bloom

Luckily I have 400 watts in reserve!!

 

[Pennywise]

That will help big time.

 

[Homer Simpson]

That will help big time.

Hmmmm... I am a little leary of burning leaves from the past with burples so I have my MegaLight set at a pretty low wattage and to save energy but I am reconsidering since you think it will help big time. But then again I was recently warned not go experimenting trying to get it "better" by a real expert.

 

[Pennywise]

Lol well you only need 350-400 ppfd in veg but need around 1000 ppfd in flower.

 

[Old Salt]

You can use a light meter app on your smart phone to get a reasonable approximation of the PAR value.
PAR ≈ Lux/67

So in veg 23,450 - 26,800 Lux, and in flower 67,000 Lux, at the canopy.

Also, beware of plants that fall outside these general rules. My Sapphire Scout got severe light burn in a matter of days when the other plants in the tent shading it were harvested.

 

[Homer Simpson]

Lol well you only need 350-400 ppfd in veg but need around 1000 ppfd in flower.

You can use a light meter app on your smart phone to get a reasonable approximation of the PAR value.
PAR ≈ Lux/67

So in veg 23,450 - 26,800 Lux, and in flower 67,000 Lux, at the canopy.

Also, beware of plants that fall outside these general rules. My Sapphire Scout got severe light burn in a matter of days when the other plants in the tent shading it were harvested.

You guys are full of info. I have read a bit and lux is all light I think and par is just the spectrum that the plant uses I think? So I was not sure if a photographic light meter would help? I might as well give it a try if you think they can be converted.

 

[JCTJ]

You can use a light meter app on your smart phone to get a reasonable approximation of the PAR value.
PAR ≈ Lux/67

So in veg 23,450 - 26,800 Lux, and in flower 67,000 Lux, at the canopy.

Also, beware of plants that fall outside these general rules. My Sapphire Scout got severe light burn in a matter of days when the other plants in the tent shading it were harvested.

If you have a Samsung phone you can also go to the keypad and type *#0*# and then hit sensor. Lux will be available under "Lights Sensor"

 

[Pennywise]

Lux measures candle power, par = Photosynthetic Active Radiation. Par is the light From 400-700 nm that plants can actually use.

 

[Old Salt]

Lux is the wavelengths the human eye can see. PAR includes wavelengths above and below. Mayne did measurements with a light meter (Lux) and quantum meter (PAR) to determine the conversion factor. A few others have done the same and confirmed his findings.

 

[Homer Simpson]

Lux measures candle power, par = Photosynthetic Active Radiation. Par is the light From 400-700 that plants can actually use.

Lux is the wavelengths the human eye can see. PAR includes wavelengths above and below. Mayne did measurements with a light meter (Lux) and quantum meter (PAR) to determine the conversion factor. A few others have done the same and confirmed his findings.

You can use a light meter app on your smart phone to get a reasonable approximation of the PAR value.
PAR ≈ Lux/67

So in veg 23,450 - 26,800 Lux, and in flower 67,000 Lux, at the canopy.

Also, beware of plants that fall outside these general rules. My Sapphire Scout got severe light burn in a matter of days when the other plants in the tent shading it were harvested.

Great info guys. I have an old photo light meter and at the canopy I have a reading of 13.5 LW EV reading whatever the heck that is but on the back of the meter is a conversion chart and 13.5 LW EV is about 66000 Lux so I am pretty close to where I should be.

I was reading on a sunny day at 100 ASA, f16 would have a shutter speed of about 1/100th and my setting is only a little over a stop from that so my light is a little under 50% the brightness of outdoors. That is pretty bright.

 

[Homer Simpson]

That also makes sense because my MegaLight is suppose to be good for a flowering area of 5' by 5' but mine is only 3x3 so 600W x9 divided by 25 is 216W and I am set at 200W.

I am not just saying it out of appreciation the MegaLight is a great and very efficient light compared to those darn blurple designs.

 

[Homer Simpson]

If you have a Samsung phone you can also go to the keypad and type *#0*# and then hit sensor. Lux will be available under "Lights Sensor"

Thanks for the info but I am stuck with an iPhone.

 

[InTheShed]

I got a $30 lux meter off Amazon (LX1330B) and use an online converter for PPFD.

Conversion is only 100% accurate for fixed spectrum lights. With tuned lighting that conversion becomes more of an approximation.

 

[Homer Simpson]

I got a $30 lux meter off Amazon (LX1330B) and use an online converter for PPFD.

Conversion is only 100% accurate for fixed spectrum lights. With tuned lighting that conversion becomes more of an approximation.

The same meter on Amazon.ca is $45. My lights are fixed spectrum but for some reason, I can't find them online. This is the only info I can find printed on them but it is nowhere to be found. I wish I could find them because I am curious about the spectrum temp.

 

[InTheShed]

The manufacturer doesn't have the color temp in the specs? I can't find that board online either.

 

[Homer Simpson]

The manufacturer doesn't have the color temp in the specs? I can't find that board online either.

I cannot find the manufacturer because I cannot type UR backwards, lol. But seriously. I have no idea who they are. RU doesn't work either.