rickhighly420
Well-Known Member
how well do they work?
black lights?
- Thread starter rickhighly420
- Start date
mogie
Well-Known Member
Blacklights do not produce the correct spectrum of light to grow plants.
The only lights that currently produce the required color spectrum of light to grow plants are the following;
Suitable for Growing:
Flourescent (Tube shaped)
Compact Fluorescent
(a flourescent tube with ballast included that screws into regular light fixture)
Metal Halide (MH) Best for Vegetative growth, but it doesn't contain all of the spectrum needed later during flowering for truly outstanding buds. the light shines a blueish/white color
High Pressure Sodium (HPS) Best for Flowering. Ok for Vegetative. shines a yellow/orange color. All can be purchased at your local home/lumber store.
Not suitable for growing:
Blacklight type flourescent lights.
ANY incandescent lamp
(if it screws into a regular lamp, it won't produce worthwhile buds). Exception, compact flouro mentioned above)
Halogen
Mercury Vapor
The only lights that currently produce the required color spectrum of light to grow plants are the following;
Suitable for Growing:
Flourescent (Tube shaped)
Compact Fluorescent
(a flourescent tube with ballast included that screws into regular light fixture)
Metal Halide (MH) Best for Vegetative growth, but it doesn't contain all of the spectrum needed later during flowering for truly outstanding buds. the light shines a blueish/white color
High Pressure Sodium (HPS) Best for Flowering. Ok for Vegetative. shines a yellow/orange color. All can be purchased at your local home/lumber store.
Not suitable for growing:
Blacklight type flourescent lights.
ANY incandescent lamp
(if it screws into a regular lamp, it won't produce worthwhile buds). Exception, compact flouro mentioned above)
Halogen
Mercury Vapor
rickhighly420
Well-Known Member
alright, yeah I was just wondering... I always heard when I was a kid from my other young friends who had never even seen a plant "U grow marijuana by putting tin foil all around it and use a blacklight", so I was just wondering...
FilthyFletch
Mr I Can Do That For Half
Yeah they had no clue since aluminum foil is bad and black lights are good for posters only
rickhighly420
Well-Known Member
what do you mean foil is bad?!?!?!?!
TheConstantGardner
Well-Known Member
Hot spots.... learned that from experience and later from the friendly folks at rollitup
rickhighly420
Well-Known Member
so, I shouldn't use it? cause I've been using it all along....
prizm23a
Active Member
im pretty sure im right but feel free to correctme if i am not.....since trichomes are the plqnts defense mechanism against uvb from higher altitudes where it started.....can using a blacklight along with your primary light system (in my case 2 600 watt mh/hps) increase trichome or resin production? can a black light make your plants more potent??