Govita Pro dual ended super HPS?

[TheMan13]

http://www.ushio.com/products/entertainment/mh-umi.php
They are making them now just not for our application yet.

These are likely not commercially available due to the odd warning:

NON SELF EXTINGUISHING LAMP WARNING: This lamp can cause serious skin burn and eye inflammation from shortwave ultraviolet radiation if outer envelope of the lamp is broken or punctured. Do not use where people will remain for more than a few minutes unless adequate shielding or other safety precautions are used.

 

[hammer21]

These are likely not commercially available due to the odd warning:

NON SELF EXTINGUISHING LAMP WARNING: This lamp can cause serious skin burn and eye inflammation from shortwave ultraviolet radiation if outer envelope of the lamp is broken or punctured. Do not use where people will remain for more than a few minutes unless adequate shielding or other safety precautions are used.

Sounds safe to me.....use a little sun block I'm good with it. They have to be ultra bright bulbs I want some.

 

[OGEvilgenius]

These are likely not commercially available due to the odd warning:

NON SELF EXTINGUISHING LAMP WARNING: This lamp can cause serious skin burn and eye inflammation from shortwave ultraviolet radiation if outer envelope of the lamp is broken or punctured. Do not use where people will remain for more than a few minutes unless adequate shielding or other safety precautions are used.

I want some.

 

[st0wandgrow]

I'm rockin the old school HPS, and will not spend money to replace them until they take a shit (these fuckers seem like they'll never die). Admittedly I'm no expert on the various options here, but Im surprised to see so many people down on LED technology. There are quite a few threads here and elsewhere that I've stumbled on that portray a very comparable LED product to HID. They are of course more expensive upfront to buy, but what are the main drawbacks aside from initial investment? I was under the assumption that they are more efficient to run, and generate a lot less heat. No?

And I'll start giving a shit about green energy subsidies when they stop subsidizing the über-profitable oil industry.

 

[hammer21]

LEDs still produce heat say it uses 600 watts same amount energy used and heat generated as a 600 watt hps. LEDs just transfer the heat generated over a larger area. A ac-de hood vented gives out 3 times the light and very little heat. Double ended bulbs in my opinion are the future not LEDs. Show me a commercial green house using LEDs just not happening.

 

[ttystikk]

I'm not an LED manufacturer. LED tech advances faster than computer tech.

Any lamp that mostly generates heat (and a little light) is doomed

That day is indeed coming. Just like fusion power, lol. Until they're HERE, I prefer to with with what is here. Plants grow better that way, too.

 

[st0wandgrow]

LEDs still produce heat say it uses 600 watts same amount energy used and heat generated as a 600 watt hps. LEDs just transfer the heat generated over a larger area. A ac-de hood vented gives out 3 times the light and very little heat. Double ended bulbs in my opinion are the future not LEDs. Show me a commercial green house using LEDs just not happening.

Huh. See I was under the impression that LED's generated less heat than comparable HID's. not the case?

 

[ttystikk]

I always preferred Philips 'bulbs' but Gavita has become increasingly popular over the years moving towards becoming the nr1 brand for cannabis growing in the Netherlands. That's a given now that Phillips stopped selling lamps to the mj grow industry:

http://www.hortidaily.com/article/6254/Philips-stops-selling-lamps-to-cannabis-growers-employees-threatened-at-home

Some growshops still have them but they will run out sooner or later.

Anyway, can't go wrong with a Gavita Pro. Comparing it to led is like comparing a high end Mercedes on gas to a 2 seater Volkswagen on electricity

Huh. Ever drag raced an electric car? Beware... they leave the line hard!

 

[ttystikk]

I haven't read all six pages of this thread yet, but has anyone discussed high wattage CDM style HID lighting? I'm running the Philips CDM 860W lamps;

http://advancedtechlighting.com/cdmea860.htm



I did a lot of homework and I really wanted to like the new double ended HPS tech, but goddammit- HPS spectrum sucks, guys! I just don't see how it does a lot of good to emit yet more of the wavelengths we know the plants don't want?

I think de HPS is a great lamp if you're an HVAC tech.

By contrast, the above lamp screws into a mogul socket base, operates vertically, it's protected against internal failure so you can run them bare, they cost about $100, they run on the cheap, bulletproof old school 1kW magnetic ballast set to MH- yet they pull only 860W.

What's not to like?! I'm running these head to head vs HPS on digital ballasts, so the plants will tell us.

 

[Sativied]

What's not to like?!

Lumen Maintenance - 10% life:85 %

Luminous Efficacy Lamp95 Lm/W [compared to philips 600w master son-t pia: 148 Lm/W]

For example

I'm running these head to head vs HPS on digital ballasts, so the plants will tell us.

Cool, got a journal/thread about it?

 

[Rrog]

Hammer the LED convert Watt to usable light much more efficiently than HID. They don't produce the huge infrared that HIDs do. This makes a space much easier to cool. That's why I built one for a buddy with a closet grow.

Thanks!

 

[ttystikk]

Lumen Maintenance - 10% life:85 %

Luminous Efficacy Lamp95 Lm/W [compared to philips 600w master son-t pia: 148 Lm/W]

For example


Cool, got a journal/thread about it?

Not perfect, but I'm not replacing my ballasts or fixtures either. That saves a lot of coin. Smaller CDM lamps have lumen depreciation issues too.

You keep bringing up HPS without discussing its inferior spectrum output. It's not an apples to apples comparison of lumens, because lumens are for humans. Even the Kelvin numbers are just an average, and therefore are inaccurate- even misleading- as a representation of actual spectrum output. Look at the graph instead; the plant active bands in the violet and red ranges really pop by comparison to HPS. THAT'S what counts, not lumens per watt.

Journal link in my signature line.

 

[Sativied]

You keep bringing up HPS without discussing its inferior spectrum output.

Well since you think it's an argument that can be used for everything I figured I balance that out and ignore you said that

Since you insist, are you claiming the difference between that 95lm/w and 148lm/w is merely useless light? Don't get me wrong, I'd love to use my watts more efficiently, but that seems a little exaggerated.

 

[ttystikk]

Well since you think it's an argument that can be used for everything I figured I balance that out and ignore you said that

Since you insist, are you claiming the difference between that 95lm/w and 148lm/w is merely useless light? Don't get me wrong, I'd love to use my watts more efficiently, but that seems a little exaggerated.

Can't say about the six hundred, since I don't have any. I'm doing head to heads between the 860W CDM lamps and HPS thouies, and I figure we'll let the ladies have the last word. How does that sound to you?

 

[TheMan13]

Hammer the LED convert Watt to usable light much more efficiently than HID. They don't produce the huge infrared that HIDs do. This makes a space much easier to cool. That's why I built one for a buddy with a closet grow.

Thanks!

Odd that you mention LED's theoretical low Ir output. As LED's have developed the extreme profitability and competition has forced their R&D into secrecy so it's hard to truly know what's going on. The real world performance bumps of LED's historically should be able to be reverse engineered with understanding. When and why did the leading LED manufactures add Ir diodes to their panels? Learning what they had I pulled the glass from my HPS hoods and never looked back ...

Sub LBC gave state of the art LED panels a go in his veg tent just last year. They not only failed to provide adequate growth or maintenance of his mothers, they did so burning the same electricity as HID

A bit more in depth

 

[hammer21]

Hammer the LED convert Watt to usable light much more efficiently than HID. They don't produce the huge infrared that HIDs do. This makes a space much easier to cool. That's why I built one for a buddy with a closet grow.

Thanks!

I know of a few people who built led panels on the net looks like a fun project.

 

[hammer21]

Friend has a large led set up the only thing it is growing is dust in his basement it failed so bad in so many ways. He paid close to 1400 buxs for it the leds failed, drivers failed, and plants did not respond to it well. The vid is just like many you can find on failed led lighting. Would not invest your lunch money on any led company.

 

[CashCrops]

I would still like to get on this:
http://www.parans.com/eng/sp3/

and supplement with hps when there is no sun light.

 

[ttystikk]

I would still like to get on this:
http://www.parans.com/eng/sp3/

and supplement with hps when there is no sun light.

Look at the surface area of the collector on the roof and then tell me that fucking mail slot is going to power a real grow. I've seen these and solartubes, they're fine for illumination of an interior space- but they provide wholly inadequate light pressure for gardening.

I'm still holding out hope someone will make a breakthrough, but so far they're all stuck on using tiny light collectors. It's still sunlight; to get a square foot of adequate light coverage inside, you need to collect AT LEAST a whole square foot's worth from somewhere, right?

 

[Sativied]

Can't say about the six hundred, since I don't have any. I'm doing head to heads between the 860W CDM lamps and HPS thouies, and I figure we'll let the ladies have the last word. How does that sound to you?

Honestly, it sounds like you made up your mind already and the results will be heavily influenced by confirmation bias.