thatsmessedup
Well-Known Member
I was wondering who has used hps and led and know what the differences are with heat management. What have your experiences been?
LED heat VS HPS heat?
- Thread starter thatsmessedup
- Start date
Claude Bawls
Active Member
I had 2 90w UFOs that I could hold at any time. I sold them for a 250w switchable that cannot be touched and brings the heat in my tent to very high levels. I have to keep it open when the lights are on.
MajorCoco
Well-Known Member
My impressions are that the heat produced is about the same per Watt of power, but that HID put more heat out the front, where LED heat can mostly be dissipated out the top of the light. This means you can get closer to the plants.
I think that the main reason for this is that less Infra-red light is generally output in LED systems than with HID. The IR part of the spectrum is weak, or missing from most LED light systems.
I think that the main reason for this is that less Infra-red light is generally output in LED systems than with HID. The IR part of the spectrum is weak, or missing from most LED light systems.
brotherjericho
Well-Known Member
No, and some might even burst when touched so...yeah. But its not really fair to compare the heat from a 90w (if actual draw) LED to a 250w HPS as Claude did.
I think the idea is that you can use less watts for LED to get similar results with a higher watt HPS because some of the LEDs give off more usable light for the plant. Less watts = less heat, no matter what the source.
thatsmessedup
Well-Known Member
So do you guys think 250 watts of led would produce the same amount of heat as a 250hps. If you had everything dialed in heat-wise for 250 led could you replace it with a 250 watt hps and not have to change the way the tent is cooled?
puffenuff
Well-Known Member
Absolutely, if you have a quality source of leds.
ClassAcura
Active Member
LEDs produce substantially less heat than HPS, I have both
thatsmessedup
Well-Known Member
how many watts of led do you think you would need to create the same heat put out by a 400hps?
ClassAcura
Active Member
You cant touch an HPS bulb, its too hot. You can easily touch an LED of any wattage
Claude Bawls
Active Member
A shitload
Claude Bawls
Active Member
I am sorry but I highly disagree
puffenuff
Well-Known Member
No need to apologize. You have your opinion and I have mine. I know what my leds produce and what my hps grows used to produce before I made the switch, and I have no regrets. I stand by my statement. Why do you disagree?
400watts of actual draw on leds will produce the same heat as a 400w hps.
brotherjericho
Well-Known Member
What does that have to do with a 90w LED vs a 250w HPS?
thatsmessedup
Well-Known Member
So one would not need to change the way there tent is cooled if changing from 400 watts of led to 400 watts of hps?
FilthyFletch
Mr I Can Do That For Half
Hps will have more heat then leds in general. I run 600 watt hps units 1 in a 4x4 tent and 3 in 4x8 tnets. I have no heat issues and I do not use cool tubes or inline ducting hoods. I use 2 clip fans inside to move aire then I have inlet and outlet fans to exchange the air with co2.My in draw fan runs 24 hours and the exhaust fan is set to run 30 minute on before a fresh co2 injection.
Beefbisquit
Well-Known Member
250W LED will outperform 250W HID.
You just have to grow differently with LED...
You just have to grow differently with LED...
thatsmessedup
Well-Known Member
Not trying to turn this into that kind of debate... Sorry.
