BBQtoast
Well-Known Member
Any bright light makes a good space heater, impractical because they also blind you but still waves of close values traveling through air striking a surface.
Horticulture Lighting Group HLG 350R how much heat compared to other lights?
- Thread starter ilovetoskiatalta
- Start date
Any bright light makes a good space heater, impractical because they also blind you but still waves of close values traveling through air striking a surface.
Interesting. Cool.Log In ‹ EYE Hortilux — WordPress
eyehortilux.com
Use the Hortilux BTU calc, and enter the same system wattage for both LED and HID, and you will find that their calcs show the HID side significantly (over 20%) hotter.
Boatguy
Well-Known Member
It actually shows more btu's of cooling needed, and no measurement of btu's generated by the light.Log In ‹ EYE Hortilux — WordPress
Use the Hortilux BTU calc, and enter the same system wattage for both LED and HID, and you will find that their calcs show the HID side significantly (over 20%) hotter.
Doesnt really make sense that an hid of equivalent wattage would generate more heat than the led, but i am no engineer. Led manufactures dont make claims of less heat, just that the amount of light generated per watt is higher. So less watts = less heat
PJ Diaz
Well-Known Member
Obviously the indication of more btu's needed to cool HID grows is directly proportional to the additional heat produced.
BBQtoast
Well-Known Member
But not from light or the led would need more BTUs as it produced more light for the same wattage as the hid. Light is a form of energy that transforms into heat so more light more cooling.
Boatguy
Well-Known Member
obviously... You should have read it first, before linking it
PJ Diaz
Well-Known Member
I did. You should have considered making an actual argument before posting that snide retort.
Boatguy
Well-Known Member
Maybe this is better for you. The calc doesnt not show btu's created by said lighting.
PJ Diaz
Well-Known Member
Yes, we already acknowledged that, and I had a directly reply. Perhaps you could explain your theory of why you would need more AC btu's for cooling HID grows vs LED grows of equivalent wattages, if it's not related to the heat which is created by each different light source.
Boatguy
Well-Known Member
I never presented such a theory. You did
PJ Diaz
Well-Known Member
So you have no theory as to why you need more BTU's to cool a HID grow vs a LED grow of equivalent wattage. Cool story bro. You could have just not posted at all, and we'd have the same level of intelligence with fewer words.
Boatguy
Well-Known Member
I apologize for getting involved in your trolling of other members comments, and comparisons to ac, and heaters. Clearly you are wiser than i.
I honestly dont see how equivalent lighting watts used wouldnt require the same cooling needs
GBAUTO
Well-Known Member
I think that in the scenario comparing a space lit by HPS vs. LED, the biggest difference in heating the environment would be all of the IR radiation the HPS emits.
A significant portion of the total energy hps emits isn't used by the plant to grow-that energy heats the environment.
A larger portion of the radiation emitted from led is used by the plants to create bio-mass.
That process stores potential energy in the plant that's released when it's burned.
A significant portion of the total energy hps emits isn't used by the plant to grow-that energy heats the environment.
A larger portion of the radiation emitted from led is used by the plants to create bio-mass.
That process stores potential energy in the plant that's released when it's burned.
ilovetoskiatalta
Well-Known Member
I run 315cmh not HID. I switched to cmh because there was less heat.Log In ‹ EYE Hortilux — WordPress
Use the Hortilux BTU calc, and enter the same system wattage for both LED and HID, and you will find that their calcs show the HID side significantly (over 20%) hotter.
BBQtoast
Well-Known Member
The real figures aren't enough, ir is low anyway compared to most all other lengths of wave, a lot is absorbed, it's still not enought to alter the cooling so we could notice much.
This is how the "new" heatsinks for my "new" HLG XL 260w rspec KITS (yes BOTH OF THEM) arrived today. Both Quantum Board envelopes were resealed as well. I don't care if the RollItUp admin don't want me commenting, people deserve to be notified of how HLG treats their customers. THIS IS REDICULOUS.
THESE ARE BRAND NEW OUT OF THE BOX.
THESE ARE BRAND NEW OUT OF THE BOX.
PJ Diaz
Well-Known Member
CMH is a HID type lamp.
Thing is, there isn't very much "heat" off the led itself, definitely not out the front. Certainly not IR. The drivers get quite hot though.
SpideyManDan
Well-Known Member
Interesting. My understanding is LED would be lower because its a more efficient fixture, turning more of the same amount of energy into photons and in the process producing less heat as its a (General) unwanted by product. Heat is generally produced because of inefficiency in a particular fixture ie incandescent compared to CFL.
edit: I just thought of this, dont confuse that with cool to the touch. Its still producing a large amount of heat due to LED not being 100% efficient. It could still be hot enough to easily burn you.
edit: I just thought of this, dont confuse that with cool to the touch. Its still producing a large amount of heat due to LED not being 100% efficient. It could still be hot enough to easily burn you.
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