Horticulture Lighting Group HLG 350R how much heat compared to other lights?
- Thread starter ilovetoskiatalta
- Start date
Boatguy
Well-Known Member
If unused electricity goes somewhere due to inefficiency. Where is that place, and what is the result?This was great watching the noob get chopped down sentence by sentence
I thought every actual reaction had an opposite and equal reaction..... So efficiency is the rated energy to light output percentage. Where does the rest go? Please enlighten me
bk78
Well-Known Member
bk78
Well-Known Member
We are talking about refrigerators now FYI.
Boatguy
Well-Known Member
Pretty much the anticipated response. You havent left me wanting
bk78
Well-Known Member
Ditto homeboy
DE HPS bulbs you are supposed to run constantly for 24 hours the first time you fire the bulb to achieve maximum brightness. I'm not sure if this is the case for all HID bulbs or just DE.
Not sure how much of a difference it makes, but if that's what the manufacturer recommends for "maximum brightness", that's what I do
I have a HLG 650R, HLG 350R, 2x Lumatek Attis 300s and a no name 240w QB.
The 650R throws off alot of heat, have to keep it fairly high from plants to avoid bleaching.
No name 240w QB is fairly cool.
First run using Lumateks and 350R so can't really comment, the 350R will be the same as the 650 just smaller footprint though.
The 650R throws off alot of heat, have to keep it fairly high from plants to avoid bleaching.
No name 240w QB is fairly cool.
First run using Lumateks and 350R so can't really comment, the 350R will be the same as the 650 just smaller footprint though.
Compared to other lights? My 650R puts off around the same amount of heat as my 600w DE HPS lights. Less infrared and less heat under the light directly, but same heat load to my sealed room.
I have run 600w CMH "retro conversion" bulbs in my 600w 400v HPS ballasts and found they put off a little more heat than a DE 600w HPS?
I contacted HLG to ask about remotely mounting the drivers on my 650R and 350R to minimise heat load in sealed room and was advised against because will void warranty. It's not as simple as other QB brands by just unplugging and getting appropriate extension lead, you have to cut the wires and resplice, if you have electrical experience you shouldn't have any dramas though.
I have run 600w CMH "retro conversion" bulbs in my 600w 400v HPS ballasts and found they put off a little more heat than a DE 600w HPS?
I contacted HLG to ask about remotely mounting the drivers on my 650R and 350R to minimise heat load in sealed room and was advised against because will void warranty. It's not as simple as other QB brands by just unplugging and getting appropriate extension lead, you have to cut the wires and resplice, if you have electrical experience you shouldn't have any dramas though.
What you are you referring to, can you provide an example?
BBQtoast
Well-Known Member
An infrared heater is more efficient at heating a surface in atmosphere than a coil heater, there are lots of examples of electricity energy conversion efficiencies.
MidnightSun72
Well-Known Member
Yes but I believe 100% of the watts are still converted to Heat in the room. It's just that different types of heaters are more efficient at conveying the heat in different ways. At least that's the way I understand it.
for example in the winter I uses to use an infrared heater to keep me warm in the garage while I smoked the doobs outside the house.
They are more efficient because they will warm you and your area vs the whole garage. But the same total amount of BTUs are being released if the watts are equal.
ilovetoskiatalta
Well-Known Member
how much heat does the 350r put out at 100%? I have just put in the space and set it at 30% day one 40% day two ect. It is in a flower room with other 315 cmh with Hortilux bulbs. it is a light we will see what it can do. Thanks for the info.
BBQtoast
Well-Known Member
I agree with what you have said, energy cannot be lost but it can be made less efficient which is how low voltage LEDs gain a higher conversion rate over hids to light.
The fate of everything and reason for Thanos killing half of all life.
ilovetoskiatalta
Well-Known Member
@MidnightSun72 how did my post get so derailed ?
I havnt grown under it yet, currently shut down for holiday. I have it set up in the flower room waiting for next run.
I reckon it will put about the same amount of heat out as a 315w CMH, but you will likely have to hang it a little higher than a 315w CMH to avoid bleaching buds directly under the light. Bigger footprint from the 350R.
PJ Diaz
Well-Known Member
Maybe heaters are a poor example, since the wattage is already used to a heat conversion. Let's perhaps consider AC units. How is it that some AC units have higher btu ratings than others which burn the same amount of watts?
PJ Diaz
Well-Known Member
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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.
GBAUTO
Well-Known Member
I'd say from an absolute standpoint, every watt of energy you introduce into your grow space ultimately is converted into 3.41 BTU's
I think that because of most led's increased efficacy at converting watts of power into photons of PAR, more of that energy is initially used to grow the plant rather than just being dumped into the space.
It's one of the reasons a HPS is also a very effective space heater.
I think that because of most led's increased efficacy at converting watts of power into photons of PAR, more of that energy is initially used to grow the plant rather than just being dumped into the space.
It's one of the reasons a HPS is also a very effective space heater.
BBQtoast
Well-Known Member
The unit efficiency, gas, coils, fan, a lot of energy can be lost to these which gives a different btu.
An AC can loose the energy to the outside, it's not a closed system, a light in a tent is so we are left with a total transfer of electricity.
Im not making any point, AC efficiency is not my expertise, the energies of a watt rely of their conversion to light and heat and differences small so I wouldn't notice, replacing one light with another that yeilds the same. One using less watts is the energy saved, btu would be quite similar based on photon count.
If the op finds two similar light outputs just keep everything the same if you swap, if your grow gets a lot brighter and yeilds more you may have needed more btu or exhaust, if it got dimmer and those Chinese blurples swear it's the same as your CMH then you can manage with less.
Isn't btu more based on light.
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