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MadagascarX

Total Lumens per Light

52 posts in this topic

Hi MindyourHead,

There are really only two quality twin spectrum light units I would recomend. The Philips Son-T Agro and the Osram Planta, there are alot of Japanese and various models coming on the market, but I really wouldn't trust them. Stick with these for quality light output. But in your case MindyourHead, I think it's only Philips that do the 400w version.

To get the best perfomance when light is concerned follow this table below.

1 Lamp : Metal Halide for Vegging, HPS for flowering

2 Lamp : 1 Metal Halide & 1 HPS

3 Lamp : 1 Metal Halide & 2 HPS

Then follow this rule...

1 Metal Halide for every 3 HPS

Happy Gardening

MadagascarX ;)

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Tks MGX. Thats what I needed to know :P

MYH.

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Its a proven fact....

The more Light your plants will recieve, the bigger, stronger they will become.  The only draw back to these higher wattage unit is Heat build up!  Most plants will grom most effective between temps ranging between 20-28 deg Celceus and it is also best to try and avoid large temperature fluctuations between night and day as this can lead to weak and poorley formed plants. 

It is ideal for most species to try and bring these two temps as close together as possible which is easier to accomplish than you think ;) Most effective way is a propane heater (usually sold as Greenhouse heaters)

Anyway......Back to the topic at hand.  Here is a lowdown of how many lumens each light unit gives off, along with its cost of running.

Lamp:  400W Halide

Lumens: 38,000

Efficiency: 95 lumens per watt                       

Cost per 12 hours@ 8p a unit: 38p

Lamp: 400W Sodium  none 4 us fluero/enviro growers then...........

Lumens: 53,000

Efficiency: 135 lumens per watt             

Cost per 12 hours@ 8p a unit: 38p

Lamp: 600W Sodium

Lumens: 92,000

Efficiency: 153 lumens per watt 

Cost per 12 hours@ 8p a unit: 58p

Lamp: 1,000W Halide

Lumens: 115,000

Efficiency: 115 lumens per watt           

Cost per 12 hours@ 8p a unit: 96p

Lamp: 1,000W Sodium

Lumens: 140,000

Efficiency: 140 lumens per watt           

Cost per 12 hours@ 8p a unit: 96p

Happy Gardening!!!

MadagascarX

52780[/snapback]

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great info :guitar:

but i noticed i have a 6100k(125w)enviro - is this ok?? i hear you talk about 6400k(is this the 200W)

awaiting hps soon

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I was told that the ballast will also cost additional electricity.

the cheaper the ballast , the more power it will generally consume.

A very bad ballast , inteded for 400 watt hps can cost you up to 250 watts of power ( so i was told by experienced growers).

any comment on this guys?

:yahoo:

Edited by Yoda Indica

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evenin ya'll, been scrolling around this site for hours and learning plenty, just one simple question, i understand the 2700k is best for or meant for flowering, but would it be rediculious using it to veg, as i have purchased it not knowing its exact purpose an am now out abut 100 bucks.

thank you kindly

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evenin ya'll, been scrolling around this site for hours and learning plenty, just one simple question, i understand the 2700k is best for or meant for flowering, but would it be rediculious using it to veg, as i have purchased it not knowing its exact purpose an am now out abut 100 bucks.

thank you kindly

these are guides to getting the best out of ya grow. you can veg under the red spectrum lights and flower under the blues :wink:

:smoke::yinyang:

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I was told that the ballast will also cost additional electricity.

the cheaper the ballast , the more power it will generally consume.

A very bad ballast , inteded for 400 watt hps can cost you up to 250 watts of power ( so i was told by experienced growers).

any comment on this guys?

:yinyang:

ofcource. the wattage everyone is basing there cost on is lamp wattage. heating the ballast does not come for free, and as the lighting systems in use are not resistive loads, your style of electric meter also comes into play. some work on watts, some work on peak volts times peak currant, which is not watts. ohms law is for resistive circuits. Then to complicate the matter further, some lights are compensated to account for this metering system, most are infact, thats what the capacitors do.

look at a 250w set. there about 3amp. thats more like 700w.

look at modern 600's, they say 3amp aswell, thats based on wattage though, and the 250 quoted real amps.

confused? yes i bet you are!. Add 20% to the givern figures and you will be closer.

on topic. the 92,000 lumens from a 600 is based on plus lamps. normal ones are 75,000 lumens. dont get the wrong ones :smoke:

also, many plus lamps hold 90% output till the day they die. non of that 'two crops and there 50% duller' stuff of yestoyear :smug:

Edited by friendly electrician

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these are guides to getting the best out of ya grow. you can veg under the red spectrum lights and flower under the blues ;)

:rofl::smoke:

Thought it was the other way around??? No???

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Any info on the Osram 250 watt sun t plus Lumens ?

Thanks

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Thanks peeps.

So, if I were going with compact fluros for flowering then, I'd be better off using all 2700K, rather than a mix of 2700K and 6400K. Is that right?

Or should I just add additional 2700K's to the existing 6400K's?

Also, would having some of them hanging down among the plants increase light penetration?

Thanks.

:yes:

Woof

This is an interesting question. Anyone able to answer?

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the 2700s are better for flowering

the 6400s are better for vegging

a mix of these wud benefit vegging & flowering.

flowering 3:1 (3x2700 to each 6400)

vegging 1:3 (3x6400 to each 2700)

ef.

persomally, i dont use the 2700s at all

e2a -hanging em 'tween the plants does indeed increase penetration

Edited by eurasian_farmer

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Any info on the Osram 250 watt sun t plus Lumens ?

Thanks

I'm looking at 250W myself... The OSRAM site has no SON-T Plus listed that I could find but they do list these:

Vialox NAV-T 250W: 2000K Colour temp and 28000 lumens

Vialox NAV-T Super 4Y 250W: 2000K Colour temp and 33200 Lumens

They also have a lamp called the 'Plantastar' which they're saying is specifically designed for horticulture although it has the same specs as the Super 4Y lamp above... I bet there's a price difference though.

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Its a proven fact....

The more Light your plants will recieve, the bigger, stronger they will become.

Couldn´t agree more - this is why mine are under the sun. Costs me nothing as well.

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Table 2: Rated Lumens and Initial Efficacy of HID Sources

Type Wattage RatedLumens Input Watts Initial Efficacy

(nominal) (lumens) (W) (lumens/W)

HPS 35 2250 45 50

HPS 50 4000 65 62

HPS 70 6400 85 75

HPS 100 9500 118 81

HPS 150 16000 166 96

HPS 200 22000 240 92

HPS 250 27500 295 93

HPS 400 50000 460 109

HPS 1000 140000 1080 130

MH 175 13500 210 64

MH 250 20500 295 69

MH 400 36000 455 79

MH 1000 110000 1080 102

MHPSv 100 9000 118 76

MHPSh 100 8100 118 69

MHPS 175 17500 210 83

MHPS 250 21500 295 73

MHPS 400 44000 455

Posted here so I can find the damned thing when I need to.

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