What is germicidal light?

[kronicsmurf]

what is germicidal light and can it harm my seedlings

 

[Boss]

Hmm, you mean UV? Ultraviolet? I know they use them to kill bacteria in water filtration, but I would have to do some research to see if they are used in greenhouses.


Welcome to 420 Magazine by the way

 

[Damagoman]

Ain't that what makes Surfs purple?
"er is that Bioluminecense


Odor eliminating CFL's?

 

[Jedthedog]

I know that this is an old thread but we were wondering if there may be a light that you could put into an indoor grow room. This would be great against powdery mildew ..

 

[Dwight Monk]

Many of the LED lights have a few UV spectrum lights in them. Whether that has been "proven" to help with pests or mold issues I'm not sure.

 

[KingstonRabbi]

Germicidal UV lights use UV-C spectrum to destroy DNA in cells of all living things. They are meant to sterilize rooms/labs etc. So it would kill plants also.

But don't you wish it could be that easy?!

 

[Dwight Monk]

Grow Lights Grow! | The Benefits of UV Light for Indoor Plant Growth

UV light activates a plant’s natural defense mechanisms, producing a sort of “sun screen” to protect itself from the damaging light. Some plants can produce as much as 15 different defense proteins with exposure to UV. As the amount of UV increases, so does the production of defense proteins. The presence of these proteins can enhance a plant’s smell, color, taste and resistance to disease. Plants grown indoors without exposure to UV can lack these enhanced benefits.

Though like everything in life you can find "opinions" on all three sides of the coin

 

[KingstonRabbi]

Grow lights have UV-A and some UV-B. Those wavelengths don't kill germs and at weak levels actually do help plants. UV-C is much more damaging than A or B and light strong enough to kill pathogens will kill plants.

I'm not contradicting anything on grow lights. Just pointing out that they use different spectrum than germicidal lights.

 

[Jedthedog]

Check out the video it explains quite a bit .. Clean Light Hobby Unit for Powdery Mildew for Sale - Reviews, Prices, & More - GrowersHouse

 

[Jorgie Nuggz]

Hey Jed, I'm just a noob trying to get it right. However, I have done some reading and both Dwight and Kingston have valid points. If you want to battle WPM which I have, I got rid of it with NEEM OIL. You know how it is do a little googling take what you need and leave the rest. But if you like to experiment like I do here is a link for a plug and play UV bulb "no driver needed" just get a pigtail socket from lowes or home depot wire it up and start experimenting. E17 Intermediate Base Germicidal Tube Lamps | 1000Bulbs.com
God Bless, Good Luck. Keep it Green, Keep it Growing

 

[Jorgie Nuggz]

I like this, but if you're like me and you don't have money to burn. Do some home work and make yourself a working UV clean light for less. Remember everyone is trying to get rich some how.