ceestyle
Well-Known Member
I don't "want" to believe anything.
If you look up the basic laws of physics as applied to lighting, you will see that they are fact, and the rest of this thread is opinion.
1550 watts of cfl s
- Thread starter bobtokes
- Start date
If you look up the basic laws of physics as applied to lighting, you will see that they are fact, and the rest of this thread is opinion.
ceestyle
Well-Known Member
Read my previous posts. Short answer is conservation of energy - or momentum, if you treat the photon as a particle.
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homegrownboy
Well-Known Member
Thx Cees...your really going through all the extra trouble...lol.
So as it stands...all the books are lying to us...i feel........USED!!
....lmao.
So as it stands...all the books are lying to us...i feel........USED!!
....lmao.
homegrownboy
Well-Known Member
I read it in high times not too long ago, as well as other books i can't rememebr, but it's not something that was new to me...i've even been told by "old school" growers, the basics i understood was you want more lummens...you get a bulb that produces more lummens.
xxxtyrantxxx
Well-Known Member
jesus. I must have read a hundred thousand people talking about an electric bill being bigger. The jump in your bill after adding 1000W of lights is minute(as in very small). You use more electricity turning on your computer or running a big screen TV than running those lights. Think about it; the standard microwave wattage is 1100W, it uses more power running it for 40 seconds than your lights use in 4 hours.
ceestyle
Well-Known Member
I don't think so, Tim. I did the math in another thread, but I don't think what you've said really adds up. Watts are watts. Electricity is billed in kWh. So if you run your 1000W microwave for 40 seconds, it costs the same as running your 1000W light for 40 seconds ... assuming it's actually using 1000W
ceestyle
Well-Known Member
well, practically speaking, it is easier.
ganjagoddess
Well-Known Member
A 1000 watt light ran for 12 hours a day for 30 day will costs an additional $39 on the leccy bill.
homegrownboy
Well-Known Member
Thx Cees for your effort and patience in this debate.
FrostickZero
Well-Known Member
lumes don't add up , if you have 5 15w Cool White 6,500k 900 lumes your just giving them more areas that the plant can use the light so if you have 5 500 lume bulb your plants are only gonna be getting 500 lumes
ganjagoddess
Well-Known Member
Thx ceestyle for your effort into this. I am pleased with your scientific process but i do have one question for you if you dont mind...
So lets assume that we want to make a 400 watt HPS equivilent out of CFL's.
we want it to cover the same space and have the same lumen output as the 400 HPS
so in essence we need to fit the CFL's roughly into the same space as the 400 watt bulb occupies lets say for example the same Hood/Reflector is good enough.
And lets use the 200 watt HW-CFLs that outputs 12,000 lumens
So we shove three of these into our hood,
Am I reaching 36,000 lumens from one relative lightsource?
So lets assume that we want to make a 400 watt HPS equivilent out of CFL's.
we want it to cover the same space and have the same lumen output as the 400 HPS
so in essence we need to fit the CFL's roughly into the same space as the 400 watt bulb occupies lets say for example the same Hood/Reflector is good enough.
And lets use the 200 watt HW-CFLs that outputs 12,000 lumens
So we shove three of these into our hood,
Am I reaching 36,000 lumens from one relative lightsource?
ceestyle
Well-Known Member
Yes, but you'd have issues with the CFLs blocking each other, and the reflector would just not work properly.
I'm checking out some stuff now comparing 250W CFL to 150W HPS - the fixture I put in the thread. Unsurprisingly with the CFLs spread out as they are, it's much easier to achieve ridiculous intensities (~500,000-600,000 lux) using the HPS, but it's more difficult to eliminate hotspots and still maintain decent coverage. Of course, this is only with a 150, so that's to be expected.
Al B. Fuct
once had a dog named
FYI, lumens don't add. A million CFLs won't make the intensity of a single HPS.
makinthemagic
Well-Known Member
if reflectors are used properly and 2 bulbs light is contained to the same area the lumens will add. proper light placement, cooling and reflectors can make multiple cfl's the equivalent of an HPS