matthebrute
Well-Known Member
i have my HPS sitting about 3 inches away from the top of my plants, in a aircooled hood of course
Cfl vs hps ?
- Thread starter Stinkmeaner
- Start date
scroglodyte
Well-Known Member
damn.......then you're not losin' much on the trip to the canopy. that must be a good hood. tight nuggets there, i bet.
GunRunner
Active Member
Yeah i also don't agree with this statement.....I don't think that there is any correlation between loss of lumens and increase in heat output.
PJ Diaz
Well-Known Member
Well, you're wrong. Flouro tubes are the coolest of all. True the cfl glass is much cooler than the hps lamp, but the cfl is self ballasted, and the ballast puts out a lot of heat. I can put my hps ballasts outside of the growing area to reduce heat. Also, hps doesn't need cooltubes. I run 400 watts hps in a tiny tent with no cooltube, and I can have the bulb just 8 inches from the top if my canopy. Some of my plants are close to touching the outer perimeter of my reflector, and show no signs of heat issues.
PJ Diaz
Well-Known Member
Well then, if all 400w of power aren't transferred into light energy, what kind of energy is it transferred into? Answer = heat energy. Energy doesn't just disappear. Try hooking up 20 x 20 watt CFL's in a tent, then see how hot it gets up top.
ChronicObsession
Well-Known Member
Nice, looks like it hits almost 30000 lumens
ChronicObsession
Well-Known Member
YW. don't forget though, some tricky nute selection in conjunction with a good lamp can get 1/4/lb and up on each plant
missnu
Well-Known Member
I have a 400w HPS in an average sized tent...5'x2'x4' and it gets hot as hell!!!!
GunRunner
Active Member
Yes, that's true, there is no such thing as lost energy in the universe, just energy transmission.
Anyways, you have to keep in mind how efficient the light source is. you can have a 400 Watt HPS that is operating outside of optimal conditions, consuming 400 Watts of power but not giving out light (lumens) or heat corresponding to 400 watts.
Compare different light sources, see how much watts they consume, and how much lumens they put out, and how much heat they transmit, and you will realise what is meant here.
ChronicObsession
Well-Known Member
LOL MH bulbs don't have cooler operating temperatures. That's just silly. Both are HID and the bulbs get hot ass fuck. You probably don't own a MH. Anybody, I mean anybody can make a simple observation when you shut down an MH and look at the bulb, the quartz inner jacket is red fucking hot, how about that?
PJ Diaz
Well-Known Member
newuserlol
Well-Known Member
yeah switch to cfl ya fucking nob oppps meant noob cause ya aint got a clue if even asking the question...................
Milovan
Well-Known Member
All at once I run 1,600 watts of 5000k & 5600k cfl's (which equals to a little less then 400 watts of actual watts used) for
my veg stage in a small 10x10 room and the room temp
stays at 73-74 degrees and with the lights out the room temp drops to 65 degrees
(no heater needed in So Cal.) so there is a 8-9 degree temperature rise with lights
on that brings the temps to a more desirable level. How cool is that! I will be
using hps's for flowering though.
my veg stage in a small 10x10 room and the room temp
stays at 73-74 degrees and with the lights out the room temp drops to 65 degrees
(no heater needed in So Cal.) so there is a 8-9 degree temperature rise with lights
on that brings the temps to a more desirable level. How cool is that! I will be
using hps's for flowering though.
Stinkmeaner
Well-Known Member
yeah im really sorry for askin...my bad my bad. it wont happen again
