MH all the way

[greasemonkeymann]

the cdl lamps run much cooler than hps/mh, my 315 watt cdl can be put as close as cfl, open hood,no air cooling i was worried about heat, but its not an issue...

I feel ya man, but the price on those isn't practical for the room I have.
those are like 4-5 bills..
For that, I might as well save a bit more for a led

 

[greasemonkeymann]

860W CDM is still enough heat to need respect, I'd say a lot like 600W HPS.

my issue was the way my room is already setup... I don't wanna go vertical...
Got heat issues as it is..
I just went with the 10k bulb, found it on amazon, for 73 bucks.
not bad. and it puts out the kind of spectrum I want to try, so i'm gonna go with that one.
Shitty thing is, all the strains I have going are first timers, so I can't use it for a taste test or anything..
Course my next run will have some regulars, and then i'll be able to tell if it's worth it at all.
Plus it's only 73 bucks... and it's LOADED with uv...
And is fairly bright also

 

[ttystikk]

my issue was the way my room is already setup... I don't wanna go vertical...
Got heat issues as it is..
I just went with the 10k bulb, found it on amazon, for 73 bucks.
not bad. and it puts out the kind of spectrum I want to try, so i'm gonna go with that one.
Shitty thing is, all the strains I have going are first timers, so I can't use it for a taste test or anything..
Course my next run will have some regulars, and then i'll be able to tell if it's worth it at all.
Plus it's only 73 bucks... and it's LOADED with uv...
And is fairly bright also

I don't understand why people think vertical growing automatically has heat issues? It's VERTICAL, heat RISES, NO PROBLEM!

 

[greasemonkeymann]

I don't understand why people think vertical growing automatically has heat issues? It's VERTICAL, heat RISES, NO PROBLEM!

because my inline cooled 600hps has a fan blowing on it constantly, and yea heat rises, but in an enclosed shed/cabin, the heat doesn't dissipate that way, unless I get a top mounted/ceiling fan, which isn't practical in a redwood/rain forest.
Trust me, I ran a 400 w vertical MH, and it increased the temps by like 8-10 degs
that's a problem, and i'd imagine a 860w would put out more heat that a 400.
it's my setup... nothing against it, in fact I may get one in the future.
but for now, since my hoods and ducting, and fans are all setup, i'd rather just screw in a 10k 600w bulb, instead of tearing up the entire design only to find out it's too hot.
Ya feel me?

 

[greasemonkeymann]

for shits and giggles I found the charts for both.
First is the CDM, the second is the 10k 600w mh.
problem is the "power" is what? and "intensity"?
so the charts are hard to compare, but you do see the UV...
that 10k is a beast..
plus the lumens for a 860 (1000w) is 82,000 lumens
the comparable 1000w 10k Mh bulb puts out 107,000...
Plus in theory if those 10k are indeed run hprizontally and aircooled i'd speculate it could be placed closer to the plants too, which we all know makes a dramatic difference in the light supplied to the plant.
Interesting shit...

 

[lilzuko]

get some pics on those when you can my brother.
I feel I am either going with a CDM 860w or a 600w 10kMH.
I want to match a 600hps with a 600mh if I can... or perhaps the 860... but that's a bit more heat because I can't run that cdm horizontally, which means no air cooling... which means temps.... also if the other hps is horizontal then that sorta has conflicting light footprints... which I don't want really.
hmm
that 600 puts out a LOT of lumens in those juicy spectrums too..
I think I may have just decided on that...
I swear...
one day it's high-end leds, the next, a cdm for my 1000w, the next I see this beefy 600wMH...
the same shit i go through with cannabis strains, women, candy bars, restaurants, and video games...
I got problems...

I will take pictures, but I also have pictures of the plants when I started the flower process on a different thread.

http://rollitup.org/t/tangie-ghost-train-haze.879277/#post-11812831

I plan on switching my bulb to the 10k in one week and have it run for 3-4 weeks. I will also post pictures of the progress.

 

[greasemonkeymann]

I will take pictures, but I also have pictures of the plants when I started the flower process on a different thread.

http://rollitup.org/t/tangie-ghost-train-haze.879277/#post-11812831

I plan on switching my bulb to the 10k in one week and have it run for 3-4 weeks. I will also post pictures of the progress.

cool, nice.
I already ordered my bulb this morning, going to use it as a 1/1 ratio with my 600w hps, all the way through.
I think that i'll be able to tell... been using HIDs for 20+yrs

 

[ttystikk]

View attachment 3474824 View attachment 3474822
for shits and giggles I found the charts for both.
First is the CDM, the second is the 10k 600w mh.
problem is the "power" is what? and "intensity"?
so the charts are hard to compare, but you do see the UV...
that 10k is a beast..
plus the lumens for a 860 (1000w) is 82,000 lumens
the comparable 1000w 10k Mh bulb puts out 107,000...
Plus in theory if those 10k are indeed run hprizontally and aircooled i'd speculate it could be placed closer to the plants too, which we all know makes a dramatic difference in the light supplied to the plant.
Interesting shit...

Dig this! I have a great place in my setup for a big UVB generator. Could you post the link to your 10K MH bulb again for me?

 

[greasemonkeymann]

Dig this! I have a great place in my setup for a big UVB generator. Could you post the link to your 10K MH bulb again for me?

it wasn't me that had the link. but I got the bulb through amazon.
look up 600w mh, and it'll have a spot for the 10k
SolisTek STMH600-10K Metal Halide Digital Lamp, 600-watt----just copy and paste that and punch it in the search area of amazon.
http://solis-tek.com/digital-lamps/mh10k.html
there is the website for them

 

[TheChemist77]

I feel ya man, but the price on those isn't practical for the room I have.
those are like 4-5 bills..
For that, I might as well save a bit more for a led

$500.00 for each ballast,bulb,cords and hangers..pricey? well maybe however, 1 315 watt cdl bulb will last 5 years before it needs to be replaced, that alone is great as no bulb changes because that bulb does veg and flower.. next im saving more money on electric, my bill was $800.00 a month after switching to cdl its now 500.00 a month so im saving the price of 1 cdl set up every 2 months,.. in 5 months ill have saved all money spent and after that all will be profitt..
if u can check out high times sep, 2015 issue, ive thought alot about led, but they arnt perfected and improving daily so a led bought today will be antique in a year but thats not it, watt per watt youll use the same wattage for a 5x5 space wether led or hid and hid yields better...the agro 315 watt cdl watt per watt is better than a gavita pro de at 1150 watts, better par at 2ft from bulb,runs cooler than any hps or mh and has the closest spectrum to the sun over any other light on the market,,pluss your saving alot on electric..

ive only had the cdl for a short time so i cant really say if yields are better,product is more potent, etc, but i can say in the short time ive had it im liking the looks of things.. in 8 weeks ill be able to say if yields and potency are better or worse as i switched only the lights in my room.. running the same strains, same nutes, same temps, only difference is went from 2 600 watt hps and 1 400 watt mh to 3 315 watt cdl's in my flower room..1600 watts down to 945watts,, big difference on electric!!!

 

[TheChemist77]

View attachment 3474824 View attachment 3474822
for shits and giggles I found the charts for both.
First is the CDM, the second is the 10k 600w mh.
problem is the "power" is what? and "intensity"?
so the charts are hard to compare, but you do see the UV...
that 10k is a beast..
plus the lumens for a 860 (1000w) is 82,000 lumens
the comparable 1000w 10k Mh bulb puts out 107,000...
Plus in theory if those 10k are indeed run hprizontally and aircooled i'd speculate it could be placed closer to the plants too, which we all know makes a dramatic difference in the light supplied to the plant.
Interesting shit...

see if you can get the chart for a 315 watt cdl agro from boulderlamp.com,,,that will blow your mind, far better spectrum than hps or mh

 

[bravedave]

see if you can get the chart for a 315 watt cdl agro from boulderlamp.com,,,that will blow your mind, far better spectrum than hps or mh

http://boulderlamp.com/wp-content/uploads/2015/07/315W-Spectrum.jpg

Doesn't seem "far better" in the blues, but yeah nice. Actually though their chart leaves off the vertical "intensity" graduation so some of the comparison is guesswork.

 

[greasemonkeymann]

http://boulderlamp.com/wp-content/uploads/2015/07/315W-Spectrum.jpg

Doesn't seem "far better" in the blues, but yeah nice. Actually though their chart leaves off the vertical "intensity" graduation so some of the comparison is guesswork.

that was the issue with the cdm860 and the 600Mh charts too, the "vertical" parts were sorta ambiguous.
the 600mh has a damn good amount of the blues and UV though.
i'm hoping mixed with my 600hps, that it'll do nicely.
when I mix a 400 regular MH bulb I can see the difference, so I expect this sucker to do even better, due to more lumens, and waaay more UV...
I really like the CDM 860, but like I said, my room design just isn't setup for a non-air cooled vertical light.

 

[lilzuko]

Here is the start of the 10k bulb, I'm installing the bulb tomorrow morning.
I will post pics each week of the process till harvest.
Week 6 - Day 42 flower

 

[bravedave]

Here is the start of the 10k bulb, I'm installing the bulb tomorrow morning.
I will post pics each week of the process till harvest.
Week 6 - Day 42 flower

Very nice.

 

[Dr. Who]

Lots of well respected growers mix the spectrum.

I really have been on the fence as to whether to continue with UVb, but I think I will

Way too much anecdotal evidence to show that it does something positive

Yes and no. Depends on what your doing....Commercial size = NO! To much work and added electrical costs for the result.
Personal to Caregiver size....Can be good.....

You must remember that with "reptile" bulbs. Your effective distance of UV is only 18"!!! Anything over that is simply wasting your time and money overall.

I did in depth UVB testing some years back.....Lord, somewhere in here is some detailed info I supplied someone else with...2-3 years ago I think....search using my board name,,,I covered Thc % increase by testing using various methods of UV delivery....If you run a MH bulb with not glass in the hood. You do get a measurable effect! Yes ttystick is correct that the secondary glass blocks the bulk of UV from MH bulbs......The glass is borosilicate and that is the same glass in your windows and your light hoods. It is made to block UV.

I did find that 400w Mercury vapor bulbs emit much higher levels of UV across the board! So much that you MUST limit distance from the plant and exposure times! Those too are listed in my UV post that I directed you to search for....VERY complete info on it there. I would ware effective eye protection when in your grow if you try MV bulbs!!! it's that high of an exposure level!

But, yes....UVB exposure not only increase's potency....It changes the type/style of buzz too.....Deeper and more intense - longer lasting! How can you complain about a whole 4+ point (3 - 3.5 is average) shift up in overall Thc levels with well applied exposure!

I still do have the capability to employ the MV bulbs in my new personal facility.....This has motivated me to get those out on the next run and have some fun playing with that again.....Mmm, I feel more stoned already.....

Doc

P.S. I might look for that post and link it if I can find the time.....have trouble finding it sometimes..

 

[Rrog]

I'm going to give looking up that article a whirl

 

[Dr. Who]

I forgot to say that I switched back to using HPS after the first 2 weeks after light time change.....It's almost 50% more effective electricity wise and PAR spectrum wise to MH in comparison.
If you worry about trich production in MH vs. HPS.
Simply add more S and Mg along with a bump in K and you'll even beat what MH does for that!

Doc

 

[ttystikk]

Shit.. I can tell you one thing...
my old house was @3000 ft above sea level, previously I grew AT sea level, like literally a block from the beach, not only did my irish white ass BURN like a mofo up @3000 ft, but the blue dream, and the jack herer, and the J1, that were my "staples" at the time, normally grown outside near the beach, well....grown at the top of that mountain?
I can tell you man, it glistened with a different gloss, and a different sparkle, and the high?
Whew... the blue dream adopted WAY more of a racy high, fast heartbeat, very visual, the room kinda sparkled and looked almost "wet" because I was so high.
And the jack, well not only was the juicy-fruit flavor way more pronounced but the high was more racy also.
Both would make me VERY lightheaded the next morning and throughout the high... having to get up slowly.. and staggering my ass to the fridge... to eat the remaining blackberry jam... that was months past it's pull date..
Honestly.. I didn't reaaaally prefer it quite that strong...
I'm an old guy..
Reason i'm babbling about that, is the difference was the uv, or at least that's my theory.. certainly gave me sunburns in like 10 mins or less, no exaggeration there either, and i'm irish, but i have native american in me too, so it's not like i'm totally fair-skinned.
Always wanted to grow in the northern California mountains around 6k or so.. see what you could do...
Back on topic though, the absolute best results I've had indoors, was with two 600hps, and one 400MH in the middle.
Visually different, and it smoked so nice.. and those were again the jack herer and the bluedream (for yrs, that's ALL I grew)

This sounds like a great reason to do an outdoor grow in the New Mexico Rockies. Colorado's growing season up there is just a wee bit too short, at least without the use of cold frames.

 

[ttystikk]

Yes and no. Depends on what your doing....Commercial size = NO! To much work and added electrical costs for the result.
Personal to Caregiver size....Can be good.....

You must remember that with "reptile" bulbs. Your effective distance of UV is only 18"!!! Anything over that is simply wasting your time and money overall.

I did in depth UVB testing some years back.....Lord, somewhere in here is some detailed info I supplied someone else with...2-3 years ago I think....search using my board name,,,I covered Thc % increase by testing using various methods of UV delivery....If you run a MH bulb with not glass in the hood. You do get a measurable effect! Yes ttystick is correct that the secondary glass blocks the bulk of UV from MH bulbs......The glass is borosilicate and that is the same glass in your windows and your light hoods. It is made to block UV.

I did find that 400w Mercury vapor bulbs emit much higher levels of UV across the board! So much that you MUST limit distance from the plant and exposure times! Those too are listed in my UV post that I directed you to search for....VERY complete info on it there. I would ware effective eye protection when in your grow if you try MV bulbs!!! it's that high of an exposure level!

But, yes....UVB exposure not only increase's potency....It changes the type/style of buzz too.....Deeper and more intense - longer lasting! How can you complain about a whole 4+ point (3 - 3.5 is average) shift up in overall Thc levels with well applied exposure!

I still do have the capability to employ the MV bulbs in my new personal facility.....This has motivated me to get those out on the next run and have some fun playing with that again.....Mmm, I feel more stoned already.....

Doc

P.S. I might look for that post and link it if I can find the time.....have trouble finding it sometimes..

I'd very much like to see your work, Sir. It would be very helpful in my own search for effective UVB sources that meet the needs of my growing style.