HPS vs. LED Grow Lights — Which is Better for Growing Weed?

PJ Diaz said:

It's getting cold out here, so temps are starting to drop a bit in my grow tent. Rather that adding a bunch of extra wattage with a space heater, I'm gonna take down the bar LEDs and put up my CMH plus QB setup. It will be 20% more wattage, so a few more BTU's, but also more radiant heat hitting the leaves is an added bonus during winter. If it got real cold around here, I'd likely revert to straight HPS during winter. There really is no best lighting source, because it depends on several different variables.

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I think Cloudline automated inline fans are key in the winter. Lights out / nighttime is when I've always had issues with cold temps though. A little heater with a thermostat plus the Cloudlines has been keeping it cozy until the lights come back on. There is barely any swing between lights on and off.

I certainly didn't see any savings in fact it costs me more per crop to run led than it does with hid.

Hid radiates enough heat to be helpful with controlling humidity, without that radiated heat i need to run a dehumidifier.

I've still got my se/de hid but I'd rather pay the extra and reap the benefits of led at the end, i was reluctant to change tf i did.

lusidghost said:

I think Cloudline automated inline fans are key in the winter. Lights out / nighttime is when I've always had issues with cold temps though. A little heater with a thermostat plus the Cloudlines has been keeping it cozy until the lights come back on. There is barely any swing between lights on and off.

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I don't really have problems with lights out. I run my lights at night, and lights out is during the day. Power is a lot cheaper at night on my plan.

I’ve grown good weed under both. I like a 480w led in a 4x4 better than a 600w hps. I don’t need color corrective sunglasses to look at my plants now. 120w power difference is hardly noticeable on my power bill though. No real yield increase I hit about a lb either way.

hps all the way. nothing compares and it also is very simple to keep it warm in the tent

decrepit digits said:

Tec moves on but not all ways to the betterment of the industry involved. I dont care what light you use just dont be saying one is better than the rest for all uses. All of you would laff at what I use but no one ever laffs at the end result when flame hits it.

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People will always think like that, Most modern ? Better, more expansive ? Better, bigger ? Better.
Logic is out the window when it comes to high end big money tech and schemes.
LEDs are agenda driven lights, there's more to the story then better or worse weed grow lights.

I'm done dismissing this tech or the other, as I see it, good genetics will prevail in almost all situations, sure some will do better or worse, like PJ said, the heat is good in winter, and the cold is good in summer, it goes on for many things like that.

hps all the way, never had a huge yield from led, its a guarantee with hps.

Joe.Grow said:

hps all the way, never had a huge yield from led, its a guarantee with hps.

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I run 1000 watt hps, eye hort and I’ll take the Pepsi challenge any day against led’s. I see led grows all day and I’m not blown away by any of it.

Mason Jar 92705 said:

I run 1000 watt hps, eye hort and I’ll take the Pepsi challenge any day against led’s. I see led grows all day and I’m not blown away by any of it.

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I just checked out your journals


cute

bk78 said:

I just checked out your journals


cute

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Good.

PJ Diaz said:

I don't really have problems with lights out. I run my lights at night, and lights out is during the day. Power is a lot cheaper at night on my plan.

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I used to run mine at night too, but that was because it was trying to get the day temp down to HPS levels. I switched them to turn on at 12pm once I realized I could jack the heat up, mainly because having the entire day to work made harvesting a lot less stressful.

Mason Jar 92705 said:

Good.

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They look the same as everyone else's grow.

lusidghost said:

I used to run mine at night too, but that was because it was trying to get the day temp down to HPS levels. I switched them to turn on at 12pm once I realized I could jack the heat up, mainly because having the entire day to work made harvesting a lot less stressful.

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I bet your highest power rate is less than my lowest rate. Power is super expensive out here. This is a special rate since I have an electric vehicle, and peak hours are higher than typical, but off-peak is the inverse:



This is the more typical non-EV rate plan:

PJ Diaz said:

I bet your highest power rate is less than my lowest rate. Power is super expensive out here. This is a special rate since I have an electric vehicle, and peak hours are higher than typical, but off-peak is the inverse:

This is the more typical non-EV rate plan:

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I couldn't find any sort of info on my energy company's page. I don't think we have peak hours here.

lusidghost said:

I couldn't find any sort of info on my energy company's page. I don't think we have peak hours here.

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They also offer tiered rate plans out here, but I think it ends up being more expensive at the end of the month.