Something that is cool about metal halide bulbs is that they can often be customized and changed.
Ceramic metal halide vs cfl for flowering.
Metal halide lights tend to be considered great full spectrum grow lights and thy are great for the vegetative state as they usually produce really lush and thick vegetation which is great for getting weed plants ready for the flowering stage.
Seen many 1000watt and 600watt hps users go to a 400watt cmh and not look back yields are not suffering from lower wattage.
You can t just use your new cmh bulb in your old mh ballast.
We tested a ceramic metal halide bulb for flowering vegging and a.
However because you ve gone down so much you ll want to make sure that the amount of light you have with your cmh s is enough to cover your canopy we cover how to do this in an article you can find here.
An in depth look at cmh bulbs and how they fair against hps bulbs and other grow systems.
I use a mh and a few higher watt cfl bulbs that are made for flowering spectrum.
Ceramic metal halide bulbs does all that and then some.
320 watts of cfl daylight vs 400 watts cmh which would suit my plants better.
Jul 26 2010 15 i have learned personal that cfl or leds do not cut it.
Even if they share a lot of the same technology they have fundamental differences in the way they re constructed and how they operate.
Miss meanweed active member.
Done properly people have done 1lb to 1 75lbs off of a 400watt cmh.
Expect to obtain 0 3 grams per watt roughly 12 grams per standard light.
Hid metal halide grow lights have been the gold standard for the vegetative stage for the past few decades.
Trying to do so would be very dangerous.
They produce good results and can be used with larger plants that less intense lights like fluorescents.
Thread starter miss meanweed.
Cfl cost and expected lifespan.
It s a lot of bang for your buck too as the expected lifespan for compact fluorescents is about one year.
Start date jul 24 2010.
Now by replacing your fluorescent lights with ceramic metal halide lights you ve actually gone down in wattage significantly to the tune of around 2000w s.
Basically it s like this i ve already got 3 of the 8 40watt bulbs necessary for 320 watts of daylight cfl i have a 62 watt soft white cfl too but i m not counting that i need 5 more and so that s about 50 bucks.
First of all ceramic metal halide and metal halide bulbs are not the same thing.
400 watts each for flowering which would be better.
2 hps or 1 hps and a cmh.
A standard 40w cfl bulb will only cost a few bucks.
Was reading about high pressure sodium lights vs ceramic metal halides and it concluded that the hps were better for flowering as a single bulb but i was curious as to what the best combination in a two bulb setup would be.