found some lighting info good read spectrum finishing .

bryan oconner

Well-Known Member
this info is from solis tek

Here is some information on our full spectrum lamps and when to properly use them throughout your cycle for the highest quality.


We recommend using the 4K in flower as it is full spectrum with plenty of usable reds and UV but not enough to hinder yield. The full spectrum will also improve your terpene profile as well as improve the plants health and make it resistant to pests and disease. It can also be used in veg/transition if you do not require any compression for lanky/stretchy plants. A lot of facilities checkerboard their rooms with the MH4K and HPS2K for a healthy dose of full spectrum + infrared.

The higher the kelvin the lamp produces the more UV is present. UV stress is beneficial for compressing lanky/hybird plants in veg, transition (weeks 1-2), and when used in finishing it will increase the oils and resins as the plant uses them as a natural sun screen.

UV stress at high/medium levels is not recommended during the bulking stage of flowering (weeks 3 -> finish) as the plant is more focused on receiving the red photon for bulking/swelling. The blue/UV light will actually overtake the red photon as it is stronger, this is why we do not recommend using the 6K/10K for the bulking periods as it will decrease the yield. This is why the 4K is a great choice for flowering and all stages of growth.

The 6K is recommended for veg/transition if your plants are lanky/stretchy/hybird, if they are of the squat/bushy variety which does not need any compression then you can run the 4K in these periods as this will allow lateral growth but still hold down the stretch vs using HPS.

The 10K is only recommended for finishing as 30% of it's power is dedicated to UV. Facilities are reporting an upwards of 3-4% increase on THC % testing when used in the last 10 days of finishing/flushing. Definitely mix the MH10K and HPS2K if you have a plant that does go longer into flowering or if you want to gradually introduce the 10K for finishing.

i learned something from this . hope you all do as well .
 
UV is much overrated, and prefer to finish of my buds in the sun for a week or so, than risk my eye health on UV bulbs

you can get HPS sunglasses now, that should be worn when using these HPS lights

note they are careful not to admit whether its UV-A or UV-B, in either case buds will go well without either

...as why risk your eye sight for some bud?
 
Last edited:
this info is from solis tek

Here is some information on our full spectrum lamps and when to properly use them throughout your cycle for the highest quality.


We recommend using the 4K in flower as it is full spectrum with plenty of usable reds and UV but not enough to hinder yield. The full spectrum will also improve your terpene profile as well as improve the plants health and make it resistant to pests and disease. It can also be used in veg/transition if you do not require any compression for lanky/stretchy plants. A lot of facilities checkerboard their rooms with the MH4K and HPS2K for a healthy dose of full spectrum + infrared.

The higher the kelvin the lamp produces the more UV is present. UV stress is beneficial for compressing lanky/hybird plants in veg, transition (weeks 1-2), and when used in finishing it will increase the oils and resins as the plant uses them as a natural sun screen.

UV stress at high/medium levels is not recommended during the bulking stage of flowering (weeks 3 -> finish) as the plant is more focused on receiving the red photon for bulking/swelling. The blue/UV light will actually overtake the red photon as it is stronger, this is why we do not recommend using the 6K/10K for the bulking periods as it will decrease the yield. This is why the 4K is a great choice for flowering and all stages of growth.

The 6K is recommended for veg/transition if your plants are lanky/stretchy/hybird, if they are of the squat/bushy variety which does not need any compression then you can run the 4K in these periods as this will allow lateral growth but still hold down the stretch vs using HPS.

The 10K is only recommended for finishing as 30% of it's power is dedicated to UV. Facilities are reporting an upwards of 3-4% increase on THC % testing when used in the last 10 days of finishing/flushing. Definitely mix the MH10K and HPS2K if you have a plant that does go longer into flowering or if you want to gradually introduce the 10K for finishing.

i learned something from this . hope you all do as well .
The info is ancient. Stuff like gg4 & gsc will still come out like diamonds under an hps veg+flower
 
You need this, this, and this, Oh! and don't forget this too......at exactly how many dollars apiece ??

For what 2-3% on thc.......Shit......


@vostok

Hey V. If UV is over rated.
Why are you finishing outdoors then?
Your greatest spectral change is in the UV bands, into the lower - mid blues.
 
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