Lighting Hps or LED?

[MisterHarpy]

You put in mars ii panels as a example and yes there cheap but there not as efficient take for example gn led light uses only 75w yet outperforms a 250w hps. There is many different thing in LEDs. And if you read the article you would see the benefits, but fact is in large scale and commercial these big companies aren't going to go led when they've been using hps there whole life and in such huge scale the prices they pay for lights is a fraction compared to the startup costs of LEDs but now with more research and development it is being shown that it can be more efficient then HP's as it provide the plants exactly everything they need and no wasted spectrums.

 

[growbiewon]

If i remember correctly , The "in-rush" of electrical current that occurs when you flick on a fluorescent light lasts 1/120th of a second, and uses about the same amount of electricity as a few seconds of normal light operation.

The lable is pretty accurate in my experience With a kill a watt meter.

 

[growbiewon]

On the other hand the start up cost of leds should be outweighed by the less power consumption and the fact bulbs and reflectors dont need to be replaced every year.

Over time in theory leds would be cheaper when using millions of watts of power Per hour.

This is my point.
The initial investment in buying leds is nothing compared to the monthly power bills.
With the supposed savings from hps the switch would pay for itself in a few years or less.

 

[MisterHarpy]

Yea that is true, but business is business they don't care about efficiency take for example I worked in construction previously when building new home instead of putting in CFLs that cost $3 and would last a whole lot longer and save so much more we would just put in incandescent that would cost us .20¢ even though in the long run they will be more expensive, why. Because business look at short term profit more then long term profit. If if breaks its just another .20¢ in there eyes. There is nothing wrong with HP's they've used them a while, and they work for them, so if it works for them and its already making them a profit why change it, that's how they view it. They don't view it in terms as this is the best out there so we have to use , no they have a business to run they view it as a business, us small growers we dont have deep pockets we want the most efficient and worthy stuff as if we shell out money we want to know it's the best we can find that's why LEDs are our preffered light.

 

[Bilbo]

I suppose we also need to bear in mind that a greenhouse built for a gavitas system isn't going to be so easy to convert to an led system. Vastly different design parameters required for both types would likely make it more cost efficient in the long term to wait until you rebuild or expand then make the switch?

 

[growbiewon]

Par meters don't lie. Google The gavita on 1150w. There is no led than can compete in par output.

The light bill in Any business matters. Not to the builders of course but to the business owners. Its called overhead. When dealing with millions of euros per month power bill, the efficiency factor is huge.

when leds are more expensive than the top of the line horticulture lights and perform less in par testing i dont see why they are selling.

I like the idea of emulating the professional horticulture industries.

I go with the saying if it isn't broke dont fix it.

I really like the idea of leds but ive seen a 400w hps outperform a 1000w hps. So to say a "x" size led will outperform y size hps is really irrelevant because different growers can get significantly different results with the same setups even.

 

[Bilbo]

Too much par is as bad as too many nutes or too much heat!

 

[growbiewon]

I hope in not coming off brash. Sorry if thats the case. Just playing devil's advocate for the hid guys.

All love and irie vibes

 

[growbiewon]

Too much par is as bad as too many nutes or too much heat!

Agreed, thats why i went with the 600s not the 1kw. Its only recommend if you have ten foot ceiling or more.

My point is if im going to pay high prices for leds, they should clearly outperform the cheaper, yet top of the line horticulture competition.

Also considering a 400w cmh is very cheap but performance is bar none. Nothing touches the cmh in the 400w range.

 

[Bilbo]

Get an led and a lower roof?