LEC - Light-Emitting Ceramic

[Dynamo626]

LOL you may, however, im already sold on the 630 de cmh. I grew under LEDs they did a great job but the cmh has more uv witch is what drew me to them.

 

[ThaiBaby1]

LOL you may, however, im already sold on the 630 de cmh. I grew under LEDs they did a great job but the cmh has more uv witch is what drew me to them.View attachment 3865583

how does the heat compare to DE hps or regular hps?

 

[ttystikk]

LOL you may, however, im already sold on the 630 de cmh. I grew under LEDs they did a great job but the cmh has more uv witch is what drew me to them.View attachment 3865583

This is a fascinating conundrum. The blurple hue of your grow tells me you're using first generation LED, which is often less efficient than top quality HID lighting.

Therefore, a switch to 315W CMH lights would represent an improvement in performance.

However, good quality COB LED and quantum boards stomp all over all of the above.

It isn't just an idle opinion; I've owned and run them all and not only can I say the above based on personal experience, I can also tell you that;
A. UV is unnecessary to grow frosty buds.
B. That CMH won't give you significantly more of it than COBs, because it's deliberately engineered out of the spectrum for safety.
C. If you want UV, currently the safest and most cost effective way to get it is to use special UV T5 lamps on a separate circuit so you can switch them off while you're in there.

Cuz UV is BAD FOR YOU.

 

[Dynamo626]

The de cmh is a bit cooler than 600 watt hps. Dosnt require a ac fixture in a tent but will still need to vent heat out the top

 

[ttystikk]

how does the heat compare to DE hps or regular hps?

IME, it's about half because you only need 60% of HPS wattage.

 

[Dynamo626]

As stated before i dont have the knoledge to build a cob and cant afford the price. If i could i would go cob. I follow grow mouse on youtube he builds cobs. The price list of the componets on his current build is over 1500.00 sure you could go cheeper on the componets needed but you get what you pay for. Currently im outfitting a 10×10 room. Just cant see myself spending 6k just on the lighting

 

[ttystikk]

As stated before i dont have the knoledge to build a cob and cant afford the price. If i could i would go cob. I follow grow mouse on youtube he builds cobs. The price list of the componets on his current build is over 1500.00 sure you could go cheeper on the componets needed but you get what you pay for. Currently im outfitting a 10×10 room. Just cant see myself spending 6k just on the lighting

First, LED prices are dropping all the time. Second, you pay for the lights with your first crop. Third, you'll get BETTER QUALITY product, which may be hard to quantify but isn't hard to sell!

In short, your logic is known as a 'false economy' and I'm sure you'd profit from the upgrade.

 

[Johnny Lawrence]

Ok and after 20000 hours? This is my point exactly. Dosnt make sence to have one lamp at 90% and the one next to it at 100%

What? If the bulbs have the same amount of hours, why wouldn't you just change them at the same time???

I don't get where you're going with this.

 

[ttystikk]

What? If the bulbs have the same amount of hours, why wouldn't you just change them at the same time???

I don't get where you're going with this.

Lamps do fail early.

What about upgrading one lamp at a time?

Lots of reasons to have lamps with different numbers of hours on them.

 

[Dynamo626]

First, LED prices are dropping all the time. Second, you pay for the lights with your first crop. Third, you'll get BETTER QUALITY product, which may be hard to quantify but isn't hard to sell!

In short, your logic is known as a 'false economy' and I'm sure you'd profit from the upgrade.

First still much more expensive, second i donate my crop not sell it. I dont make a penny off of it.
Third cant think of a third lol. If you would be willing to buy or make a cob for me ill take it and use it and love it but untill then i will use my growers choice gc630 de cmh. I dont want to argue for many thats what they should do but not everyone has the same goal for there garden, nor is everyone growing doing it for profit.

 

[ttystikk]

First still much more expensive, second i donate my crop not sell it. I dont make a penny off of it.
Third cant think of a third lol. If you would be willing to buy or make a cob for me ill take it and use it and love it but untill then i will use my growers choice gc630 de cmh. I dont want to argue for many thats what they should do but not everyone has the same goal for there garden, nor is everyone growing doing it for profit.

You are right about everyone's circumstances being different.

That said, I believe 2017 is the year that third (COB) and fourth generation (Quantum) LED will become competitive with HID even on an initial cost basis.

 

[Dynamo626]

What? If the bulbs have the same amount of hours, why wouldn't you just change them at the same time???

I don't get where you're going with this.

If a lamp in a double fixture fails early you should replace both to keep the lighting in one atea uniform. Someone just stated there are lots of reasons to have lamps with a different amount of hours in the same fixture. Well i supose there may be but i cant think of any

 

[Dynamo626]

You are right about everyone's circumstances being different.

That said, I believe 2017 is the year that third (COB) and fourth generation (Quantum) LED will become competitive with HID even on an initial cost basis.

That happens ill be all over them but untill then... De cmh rules! Bwahaha

 

[Johnny Lawrence]

Lamps do fail early.

What about upgrading one lamp at a time?

Lots of reasons to have lamps with different numbers of hours on them.

I run 6 315 fixtures and have never had a bulb burn out. I've only had one or two hps/mh bulbs burn out in my 15 years of growing.

 

[ThaiBaby1]

First, LED prices are dropping all the time. Second, you pay for the lights with your first crop. Third, you'll get BETTER QUALITY product, which may be hard to quantify but isn't hard to sell!

In short, your logic is known as a 'false economy' and I'm sure you'd profit from the upgrade.

That happens ill be all over them but untill then... De cmh rules! Bwahaha

I'm all about leds but some need heat in the winter and hps or cmh provide it, sure you can add insulation but thats expensive and has to be factored into the equation.

 

[since1991]

I hope so.

 

[ttystikk]

That happens ill be all over them but untill then... De cmh rules! Bwahaha

Uhhhhh... no:

This plant pulled 25 oz. In a 5 gallon bucket.

EDIT: With a grand total of 900W.

 

[ttystikk]

I'm all about leds but some need heat in the winter and hps or cmh provide it, sure you can add insulation but thats expensive and has to be factored into the equation.

Insulation need not be expensive and like most other upgrades it pays for itself quickly in a growroom environment. Better still, it's doing it winter AND summer.

 

[since1991]

Insulation need not be expensive and like most other upgrades it pays for itself quickly in a growroom environment. Better still, it's doing it winter AND summer.

I wouldnt grow in a non insulated grow room. Ever. Been there done that...years ago. The difference is alot.

 

[ThaiBaby1]

Insulation need not be expensive and like most other upgrades it pays for itself quickly in a growroom environment. Better still, it's doing it winter AND summer.

Mostly agree but insulation is expensive, (just checked yesterday) and still has to factored in start up costs. In summer insulation is retains heat and is detrimental unless you use a/c