MadagascarX Posted February 10, 2003 Author Share Posted February 10, 2003 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 Link to comment Share on other sites More sharing options...
Mind Your Head Posted February 11, 2003 Share Posted February 11, 2003 Tks MGX. Thats what I needed to know MYH. Link to comment Share on other sites More sharing options...
Big - L Posted April 30, 2005 Share Posted April 30, 2005 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] Link to comment Share on other sites More sharing options...
eek Posted September 10, 2005 Share Posted September 10, 2005 great info 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 Link to comment Share on other sites More sharing options...
Guest Yoda Indica Posted March 19, 2006 Share Posted March 19, 2006 (edited) 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? Edited March 19, 2006 by Yoda Indica Link to comment Share on other sites More sharing options...
tha_madd_gardener Posted August 12, 2006 Share Posted August 12, 2006 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 Link to comment Share on other sites More sharing options...
Target Practice Posted August 12, 2006 Share Posted August 12, 2006 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: Link to comment Share on other sites More sharing options...
Guest friendly electrician Posted September 13, 2006 Share Posted September 13, 2006 (edited) 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? 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 also, many plus lamps hold 90% output till the day they die. non of that 'two crops and there 50% duller' stuff of yestoyear Edited September 13, 2006 by friendly electrician Link to comment Share on other sites More sharing options...
Razzmatazz Posted October 24, 2006 Share Posted October 24, 2006 these are guides to getting the best out of ya grow. you can veg under the red spectrum lights and flower under the blues Thought it was the other way around??? No??? Link to comment Share on other sites More sharing options...
slickskunk Posted October 1, 2008 Share Posted October 1, 2008 Any info on the Osram 250 watt sun t plus Lumens ? Thanks Link to comment Share on other sites More sharing options...
KKaeser Posted January 12, 2009 Share Posted January 12, 2009 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. Woof This is an interesting question. Anyone able to answer? Link to comment Share on other sites More sharing options...
eurasian_farmer Posted February 24, 2009 Share Posted February 24, 2009 (edited) 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 February 24, 2009 by eurasian_farmer Link to comment Share on other sites More sharing options...
Greeny Posted April 21, 2009 Share Posted April 21, 2009 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. Link to comment Share on other sites More sharing options...
Guest cantharis Posted July 31, 2009 Share Posted July 31, 2009 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. Link to comment Share on other sites More sharing options...
Guest Tutu Posted July 20, 2010 Share Posted July 20, 2010 Table 2: Rated Lumens and Initial Efficacy of HID SourcesType 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. Link to comment Share on other sites More sharing options...
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