ganja grower420
Member
Some of the leaves are dying and should i put the halogen light away from the plants? It was cheap but i can feel the heat from it.
How far away should I put my halogen light?
- Thread starter ganja grower420
- Start date
LUDACRIS
New Member
nellyatcha
Well-Known Member
number 1 throw that bulb away because its too hot and it doesnt work for growing to well due to heat and color spectrum go get some 64w cfl`s or a mh bulb or hps depending on what stage your at in your growth
ganja grower420
Member
I am also using flourescents with the halogen.
nellyatcha
Well-Known Member
then just use those and get rid of the halo, bro
ganja grower420
Member
why not use it? it seems like my blueberry plant is growing faster than my other plants and i didnt had the halogen light for my older plants
smppro
Well-Known Member
They have the wrong light spectrum for plant growth and they put out way to much heat for the lack of performance you are getting from them. Im sorry cfls are 5x more effective than halogen. 1 compact fluorescent of less wattage will do better than the halogen of higher wattage
LUDACRIS
New Member
Joe Camel
Well-Known Member
Can I grow using halogen lights?
Don't use regular incandescent bulbs ("grow bulbs") or halogens to grow cannabis, this type of light generates huge internode spacing, poor vegetative growth, skimpy yields, and could set your grow room on fire due to the dangerous amounts of heat these lights produce. Spend your money wisely, invest in Fluorescent lighting (good), or High Intensity Discharge lamps (HID-- recommended). HID lighting such as Metal Halide (MH) or High-Pressure Sodium (HPS) supply the high-intensity light that cannabis needs for good growth and large buds.
Added technical information why halogen lighting is a poor choice for plant cultivation by wannabee2004:
Q: Do halogen bulbs have a good spectral output for plant growth?
A: No, the spectral plot output of various halogen bulb types is by far the worst.
Q: Are they efficient at generating useful light for plant growth?
A: No, the best floro/hps/mh lighting each being approx 5X more efficient at plant growth than halogen.
A good way to measure plant growth efficiency of different types of lighting is PAReff. PAR stands for Photosynthetic Active Radiation: the wavelength range of light between 400 and 700 nm that can be absorbed by leafs for plant photosynthesis. PAReff is the PAR/Watt efficiency ratio over a certain area.
Some examples:
Philips Advantage Fluorescent, 5000K: 1.44 PAReff
Philips High Pressure Sodium deluxe: 1.38 PAReff
Philips Dense-Line Emitter Metal Halide, 4100K: 1.38 PAReff
Philips Spot Halogen Masterline, 2950K: 0.263 PAReff
People usually choose halogen for the "low startup" costs of a halogen light. The real costs of halogens result from its low efficiency. 500 Watt halogen lighting produces about 0.08 Watt/s/nm in the green-yellow spectral region which is about the same as 80 watts of cfl's. A 500w halogen grow will cost approx $63 for electricity, whereas a more efficient light source generates the same par value for around $10 (depending on your local prices).
Reference:
http://www.aquabotanic.com/lightcompare.htm
Don't use regular incandescent bulbs ("grow bulbs") or halogens to grow cannabis, this type of light generates huge internode spacing, poor vegetative growth, skimpy yields, and could set your grow room on fire due to the dangerous amounts of heat these lights produce. Spend your money wisely, invest in Fluorescent lighting (good), or High Intensity Discharge lamps (HID-- recommended). HID lighting such as Metal Halide (MH) or High-Pressure Sodium (HPS) supply the high-intensity light that cannabis needs for good growth and large buds.
Added technical information why halogen lighting is a poor choice for plant cultivation by wannabee2004:
Q: Do halogen bulbs have a good spectral output for plant growth?
A: No, the spectral plot output of various halogen bulb types is by far the worst.
Q: Are they efficient at generating useful light for plant growth?
A: No, the best floro/hps/mh lighting each being approx 5X more efficient at plant growth than halogen.
A good way to measure plant growth efficiency of different types of lighting is PAReff. PAR stands for Photosynthetic Active Radiation: the wavelength range of light between 400 and 700 nm that can be absorbed by leafs for plant photosynthesis. PAReff is the PAR/Watt efficiency ratio over a certain area.
Some examples:
Philips Advantage Fluorescent, 5000K: 1.44 PAReff
Philips High Pressure Sodium deluxe: 1.38 PAReff
Philips Dense-Line Emitter Metal Halide, 4100K: 1.38 PAReff
Philips Spot Halogen Masterline, 2950K: 0.263 PAReff
People usually choose halogen for the "low startup" costs of a halogen light. The real costs of halogens result from its low efficiency. 500 Watt halogen lighting produces about 0.08 Watt/s/nm in the green-yellow spectral region which is about the same as 80 watts of cfl's. A 500w halogen grow will cost approx $63 for electricity, whereas a more efficient light source generates the same par value for around $10 (depending on your local prices).
Reference:
http://www.aquabotanic.com/lightcompare.htm
LUDACRIS
New Member
ganja grower420
Member
yeah thats really funny!! (put it in a trash can) i would put a pic of my blueberry plant but i cant. it grow 5 inches in three days after it popped up.
Joe Camel
Well-Known Member
good post.
(repped).
LUDACRIS.
Thanks Luda.
Guys all these answers are in The FAQ
https://www.rollitup.org/view.php?pg=faq
~~Joe~~
ganja grower420
Member
dude i am using cfls but i thought more the light the better. I am turning off the halogen for 12 hours and I keep the cfls on for 24/0
LUDACRIS
New Member
StreetRider
Active Member
Halogen is for security lights CFL, FL, HPS, and HM are for growing.
You can send all the effort you want to prove thousands of people wrong, but all you are going to prove is that if you had better lighting you would have better yeilds and less problems.
This is a time to go with the crowd.
We are not all jumping "off a bridge."
You can send all the effort you want to prove thousands of people wrong, but all you are going to prove is that if you had better lighting you would have better yeilds and less problems.
This is a time to go with the crowd.
We are not all jumping "off a bridge."
Joe Camel
Well-Known Member
GG its about effciency. Do what you like my man. but its has no positive outcome using a Halogen bulb.
Again:
Q: Do halogen bulbs have a good spectral output for plant growth?
A: No, the spectral plot output of various halogen bulb types is by far the worst.
Q: Are they efficient at generating useful light for plant growth?
A: No, the best floro/hps/mh lighting each being approx 5X more efficient at plant growth than halogen.
