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Side by side grow. 630 CMH vs 1000HPS
- Thread starter issack
- Start date
Make those trays 4x4 man. 630 has the same footprint as a 1k hps. They run the same heat as an air cooled 1k..
That's the site I ordered all my lamps and bulbs from. Fast shipping. Great company.
p0opstlnksal0t
Active member
277v
So basically almost no heat? Our air-cooled 1ks radiate negligible amounts of heat downward. Perhaps a few degrees when within inches...
Could you do me a huge solid and take a few ambient temperature readings (without wind) a few distances from a CMH? Like maybe 1', 2', and 3'?
I'm sure I'm not the only one who would REALLY appreciate it, my good man.
I already posted this earlier in this thread. I did a reading on temperature with the CMH and thousands HPS. Same heat as an air cool thousand I will say it again for the hundredth time I'm sorry
Their ballast will work fine but the bulb is a cheap Chinese knockoff. Most people complaining about 315's are using these knockoff bulbs that have inferior spectrum. Use a Philips or you'll be bitching like heather whatshername.
So basically almost no heat?He is running a 30 and 36 mini split...so basically, yes heat!
Very informative thread from PAGE 1.
The amount of heat radiated downward from an air cooled hood depends upon many factors (I pointed this out previously). I asked for ambient temperature readings under the CMH at specific distances, not a comparison to your other lights. I have read this entire thread. If you don't wish to accommodate my request that's fine but please don't insult my intelligence by accusing me of asking redundant questions. My request is original to this thread.
I assumed so but their 630 with bulbs and hangers is still less than half the price of a Sun System 630. Though crappy, those knockoffs would make fine emergency backups until your new Philips arrive.
So basically almost no heat?He is running a 30 and 36 mini split...so basically, yes heat!
Very informative thread from PAGE 1.
We dedicate a 26K mini split to a 10' x 12' room with three 1k HIDs, CO2 generator, and a Kind 600 LED without a problem. Heat is currently not an issue for us. Our concern is that switching to non-air-cooled lights will generate more heat. Perhaps too much. As it's a major investment, we need to be sure CMH are feasible in our situation.
I'm Also curious about the temperature differences at the various heights above canopy. I saw it mentioned in the thread that the lights were going to be tight to the ceiling to avoid burning but how much different are the temps at the top of the canopy compared to the hps? I'm working on a bit of a budget and am concerned about light height to canopy as Ive only got 81.75" from floor to ceiling and my trays eat 23" of that already... I'd hate to sink money into lights I can't use...
Same here except we have 8' ceilings.
Robney
Active member
That's what the man said - they are basically similar but the Nanolux 630s create a hotspot right beneath them that isn't there with the 1ks, so the 630s run the same heat except for the hotspot. Here's a graph from cycloptics of the nanolux 630 - I'd say there's a pretty obvious hot spot they create
And let's not kid ourselves here, there's no way a bare bulb design will ever be as cool as a really well done air cooled hood.
Now just add something to think about - I just switched a 400 watt hps out with a 315 cmh, using a conversation kit, so I'm still using the same air cooled hood I did with the 400 watt. I'm seeing reduced temperatures, fatter buds, and I can still have plants within a half foot or so away from the hood without any issue. To be honest, I'm surprised I don't see more people using air cooled cmh. From my understanding, you're really only going to get the same special spectrum and bulb life if you run them in that special vertically oriented hood, not in a horizontally oriented hood like the nanolux 630, so why not throw some in some air cooled hoods?
Dirtbag - unless you live in an area with a similar environment, have the same exact cooling set up, and same layout, his temps are going to be different than your temps. I don't think anyone is trying to insult your intelligence, I think he just doesn't see how that's more helpful than what he's already said. I think bottom line is you'd have to grab a set and see how it performs in your space, or find a friend with a set to borrow/check out.
but at the same time
Issack - you're still running this set up with the dosidos, right? If you happen to have the time, maybe tape a couple thermometers to a yard stick and put it in the room for a minute, I know a couple of members you would make very happy doing this
. And again, thanks for doing this man, this really is one of the best side by side comparisons I've ever seen here.
Remove the UV Blocker!
Remove the UV Blocker!
I just want to remind you guys who are using the 315 single ended bulbs that one of the major benefits of cmh is the UV light that the bulb emits and its effect on trich development. My point being that you need to REMOVE the UV blocking housing on the bulb or else you are not going to get the benefit. Those original cmh bulbs were made for lighting people not plants, hence the UV blocker. DE bulbs don't have them. I did not read the entire thread but Issack might have gotten more weight with the added UV. See Picts!
https://www.icmag.com/ic/attachment.php?attachmentid=473035&
thumb=1
Remove the UV Blocker!
I just want to remind you guys who are using the 315 single ended bulbs that one of the major benefits of cmh is the UV light that the bulb emits and its effect on trich development. My point being that you need to REMOVE the UV blocking housing on the bulb or else you are not going to get the benefit. Those original cmh bulbs were made for lighting people not plants, hence the UV blocker. DE bulbs don't have them. I did not read the entire thread but Issack might have gotten more weight with the added UV. See Picts!
https://www.icmag.com/ic/attachment.php?attachmentid=473035&
thumb=1
Attachments
Yikes! There's a reason that jacket is on there. If you really want to take the risk (highly discouraged) you can buy the original bare style here.
Robney
Active member
Yeah, Hammerhead had one blow up and light his grow space on fire. That glass jacket also protects you, according to the Philips documentation on the t9, no person should be exposed to it for more than a few minutes unless other shielding methods are used as you can suffer from you skin and eyes burning from the short wave uv radiation.
And I highly doubt that taking a shield off a bulb will truly change yield. I'd wager Issack would get a better yield if he air cooled those cmh and brought them closer to the canopy, but that's just wild speculation on my part
Just for everyone's information: T9 type cmh bulbs are to be used in hoods with a glass lens (like nearly all air cooled hoods), T12 type cmh bulbs can be used bare.
T9 & T12
T9 & T12
I can't speak to the reliability of the cmh bulb. Once I did have a HPS blow up on me for no apparent reason. Thank God no fire resulted.
Just saying that one of the benefits of cmh beyond the better PAR is its UV output. There are countless articles on these boards touting the benefits of added UV light. Philips also knows this and that is why they sell both versions. The shielded version is meant for use on people not plants. It is not to protect in case the bulb blows up, it is to block UV, hence it says so on the bulb. Look at your bulbs.
New challenge: Side by side grow between a shielded bulb and a non-shielded bulb.
I bring this up only to point out something a lot of people have overlooked. We are all brothers in our craft.
T9 & T12
I can't speak to the reliability of the cmh bulb. Once I did have a HPS blow up on me for no apparent reason. Thank God no fire resulted.
Just saying that one of the benefits of cmh beyond the better PAR is its UV output. There are countless articles on these boards touting the benefits of added UV light. Philips also knows this and that is why they sell both versions. The shielded version is meant for use on people not plants. It is not to protect in case the bulb blows up, it is to block UV, hence it says so on the bulb. Look at your bulbs.
New challenge: Side by side grow between a shielded bulb and a non-shielded bulb.
I bring this up only to point out something a lot of people have overlooked. We are all brothers in our craft.
