ChiefRunningPhist
Well-Known Member
Nice. Looks like your CMH is a less effecient heater than your HPS.
99942 Apophis... 1%ers & their recent drive for space exploration...
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growingforfun
Well-Known Member
Luckily for you I'm not asking for 1000 sources, I'm asking for 1. I've already provided links, something your totally unable to do.
growingforfun
Well-Known Member
Contact Us
Tel: 303-444-4852
[email protected]
Heat Generated by a Grow Light
New lighting technologies, such as CDL and LEDs generate light more efficiently, or with higher efficacy than incandescent lamps. In other words, we get more lumens per watt; however, heat per watt of electricity is constant. Fewer watts are used to produce equal brightness, not that CDL or LED light fixtures produce less heat for the wattage that they consume.
1 watt of electricity produces 3.412 British Thermal Unit (BTU) of heat per hour regardless of light typeincandescent, HPS, CDL, LED, fluorescent, induction, etc. Therefore, a 1,000W HPS grow light (1,060W with ballast loss) generates 3,617 BTU per hour heat. A 500W LED grow light (550W with driver loss) generates approximately 1,877 BTU per hour heat. A 315W CDL grow light (335W with ballast loss) generates approximately 1,143 BTU per hour heat.
Physics of heat
British Thermal Unit (BTU) is the unit of heat energy. One BTU is the amount of heat needed to cool or heat one pound of water one degree Fahrenheit at a constant pressure of one atmosphere, equivalent to 251,997 calories.
The heat dissipated by an AC power operated electrical device is equal to the AC power dissipation per unit of time. Heat dissipation in BTU/hour is calculated by multiplying AC watt dissipation by 3.412:
1,000 W (1 kW) is equivalent to 3,412 BTU per hour.
1 kilowatt-hour (kWh) is equivalent to 3,412 BTU.
Boulderlamp, Inc., 555 Aspen Ridge Dr, Lafayette, CO 80026
Again.... pretty sure I'll trust a manufacture and every link on google vs some idiot without a single supporting source
ChiefRunningPhist
Well-Known Member
Lol
Contact Us
Tel: 303-444-4852
[email protected]
Heat Generated by a Grow Light
New lighting technologies, such as CDL and LEDs generate light more efficiently, or with higher efficacy than incandescent lamps. In other words, we get more lumens per watt; however, heat per watt of electricity is constant. Fewer watts are used to produce equal brightness, not that CDL or LED light fixtures produce less heat for the wattage that they consume.
1 watt of electricity produces 3.412 British Thermal Unit (BTU) of heat per hour regardless of light typeincandescent, HPS, CDL, LED, fluorescent, induction, etc. Therefore, a 1,000W HPS grow light (1,060W with ballast loss) generates 3,617 BTU per hour heat. A 500W LED grow light (550W with driver loss) generates approximately 1,877 BTU per hour heat. A 315W CDL grow light (335W with ballast loss) generates approximately 1,143 BTU per hour heat.
Physics of heat
British Thermal Unit (BTU) is the unit of heat energy. One BTU is the amount of heat needed to cool or heat one pound of water one degree Fahrenheit at a constant pressure of one atmosphere, equivalent to 251,997 calories.
The heat dissipated by an AC power operated electrical device is equal to the AC power dissipation per unit of time. Heat dissipation in BTU/hour is calculated by multiplying AC watt dissipation by 3.412:
1,000 W (1 kW) is equivalent to 3,412 BTU per hour.
1 kilowatt-hour (kWh) is equivalent to 3,412 BTU.
Boulderlamp, Inc., 555 Aspen Ridge Dr, Lafayette, CO 80026
Again.... pretty sure I'll trust a manufacture and every link on google vs some idiot without a single supporting source
If I provided you with a source your head might explode. I have some, but it's quite entertaining watching you dig yourself a hole lol
My credibility on the forum speaks for itself and when I get an annoying little yappy dog that doesn't really even care about the science, just wants to fight, I'm more than reluctant to oblige him in his requests.
What are you going to give me if I spoon feed you sources? What am I going to get out of it? To me I see a sad little small minded person that regardless if sources are posted, will still follow me around and try to discredit me anywhere possible out of bitterness, possibly stemming from some previous encounter under a different sock account? There is no amount of info that will passify that behavior. The lack of sources isn't the issue. Idk why you hate yourself but you need not to take it out on others. I'm not going to oblige a screaming whiny baby. I have the knowledge, you don't. Its on you to conduct yourself accordingly if you want what I have.
If anyone else wants the links HMU, I'll PM them to you.
growingforfun
Well-Known Member
Hahaha ok sure bud, your the one that brought this back up when everyone was laughing at your ridiculous end of the world/doomsday fears. I was ready to let it go.Lol
If I provided you with a source your head might explode. I have some, but it's quite entertaining watching you dig yourself a hole lol
My credibility on the forum speaks for itself and when I get an annoying little yappy dog that doesn't really even care about the science, just wants to fight, I'm more than reluctant to oblige him in his requests.
What are you going to give me if I spoon feed you sources? What am I going to get out of it? To me I see a sad little small minded person that regardless if sources are posted, will still follow me around and try to discredit me anywhere possible out of bitterness, possibly stemming from some previous encounter under a different sock account? There is no amount of info that will passify that behavior. The lack of sources isn't the issue. Idk why you hate yourself but you need not to take it out on others. I'm not going to oblige a screaming whiny baby. I have the knowledge, you don't. Its on you to conduct yourself accordingly if you want what I have.
If anyone else wants the links HMU, I'll PM them to you.
You give me too much credit though, I cant time travel back in time and make 9 year old "sock puppet" accounts just for your sake. And even if I could your not worth any of the effort I'm sure time travel would take.
ChiefRunningPhist
Well-Known Member
Sounds good bud.
Lucky Luke
Well-Known Member
I was a bit shocked to be honest. But they do run a few degrees cooler than MH/HPS. (which it sounds like you already know).
"Unlike LED’s, HID grow lights work because of gasses, not wires or chips. The type of gas and chemicals used in HID grow bulbs- like mercury and metal halides- react with each other to give you light. As the bulb gets brighter and brighter, it gives off heat. That heat is pretty intense and will radiate from the bulb. The higher the temperature and the longer you run it, the hotter the bulb and your grow room will become.
Now, it should be noted that CMH’s run in the same way standard MH’s run, only they have ceramic bases. However, ceramic metal halide bulbs run a lot cooler than MH and HPS bulbs by about 8°F. An LED ran cooler than CMH’s by at least 2°F, and overall 10°F lower temperature from a higher-powered LED."
-https://growace.com/blog/led-grow-lights-vs-ceramic-metal-halide-grow-lights-which-is-better/
ChiefRunningPhist
Well-Known Member
Yep that's exactly right. HID work by creating light through heat. They heat a filament up to 2,100K+ (2,100°K = 2,378°C) and it then emits a ~2100K CCT. Black body irradiance. LEDs don't heat up to produce light, they excite electrons in a different way, not through thermal. There is thermal produced as a by product but it doesn't have to exist to create light like HID requires. The ambient air can only be as hot as the hottest piece of tech. If your light runs 95°F, your air will never get hotter than 95°F. If your light runs 200°F then your air will want to climb to 200°F.
https://chuckersparadise.com/threads/spd.433/post-15928
ChiefRunningPhist
Well-Known Member
Lol all threads get derailed by trolls on RIU..
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ttystikk
Well-Known Member
For what it's worth, I agree with your treatment of the laws of thermodynamics.
I'm also well aware of the pseudoscience 'bro science' culture that's epidemic in the cannabis industry and how it is deliberately perpetuated by those with a vested interest in spreading bullshit. The worst offenders are the bottled nutrients companies but the LED lighting scammers are catching up fast!
And now, back to asteroids!
hanimmal
Well-Known Member
We are all clinging to a rock that is still burning on the inside, hurdling through space around a constantly exploding mass of metal in a giant debris field. If we get hit by 2030, the richest are just as likely to burn as the rest of us. They won't be able to get off this rock for long enough to matter since they'll just die in space. And really it is just a random chance whoever they hired to build everything didn't just kill them and take their spots.
Fogdog
Well-Known Member
It's true that the LEDs used in grow rooms don't emit IR but there is resistance in the circuit and heat is generated there. Good grow room LED lamps are what? 30-40% efficient? The rest -- 60%-70% is mostly waste heat. That heat has to be removed or the lamp temperature will go up.
In order for air cooling to work, the lamp is always at a higher temperature than the air temperature..
https://www.ledsmagazine.com/leds-ssl-design/thermal/article/16696536/fact-or-fiction-leds-dont-produce-heat
crucially, heat is produced within the LED device itself, due to the inefficiency of the semiconductor processes that generate light. The wall-plug efficiency (optical power out divided by electrical power in) of LED packages is typically in the region of 5-40%, meaning that somewhere between 60 and 95% of the input power is lost as heat.
Fogdog
Well-Known Member
Assuming the technology to move 1% of the planet's population into space existed, even if the 1% moved into space to get away from dying on earth, they will die there too. We don't understand our own physiology well enough to live our entire lives in space. Some day we will but not yet.