Light opinion 2 400 watts or 1 1000watt...

should I use 4 400 watters lol

if you hav got 4 use them , can you set up all 4 on the tracks and still have them mobile.

nope if I use the light rail I think 2 is about all I could put on there. Id have to weld a rig up to keep them stable with 3 lights in there thats about max as my reflectors are oversised 3 footer and the root is just over 8 feet so middle light gets a 2 foot reflector.So basically the 3 reflectors combine hang over a 8 foot length by about 3 feet wide so almost the whole grow area is under the reflectors.all but 6 inches on each side are directly under the reflectors.If I was real enthused on welding I could always make 1 giant 3 lamp excepting reflctor with vents but Im to lazy to do that much welding anytime soon lol

FilthyFletch said:

Ok I want opinions and thoughts on this for future refernce. If you had your choice to go with 4 stationary 400 watt hps lamps over an 8 x 5 table area or 1 1000 watt hps with oversized reflector on a electronic moving rail which would you choose to do?

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The 1000w on a light mover would be more effective than two static 400's.

FilthyFletch said:

And as a part 2 which would you think would be a lesser current draw in reality the 2 400 watt ballast firing up and running or a single 1000 watt ballast..I know what I think it should be but someone may know more and I want opinions on these 2 questions..Let er rip..

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A 1000w Magnetic coil ballast draws 9.5 amps on a 120v system. A single 400w draws 3.8 amps on a 120v system, so 3.8 x 2 =7.6 amps.

If I was real enthused on welding I could always make 1 giant 3 lamp excepting reflctor with vents but Im to lazy to do that much welding anytime soon lol
Thats funny you say that im a welder/fitter myself and thinking of make my own circular type track system for my lights . But i would say the 4 light should be sweet !

I have a 8 by 10 by 7 foot grow room - I am putting in two 1000 watt HPS lights - would I save money by wiring them to 220 rather than 110???

MRW

I forgot this was my original post lol.This was a year ago.I had made some changes and cutom built stuff. I went ahead and built a tandem light carrier for my single light mover.Its about 5 feet wide with a set of 2 600 watt digital lights one on each end taking the rail about 15 minutes to go from one side to the other and 15 minutes back. I used the 3 400 watt lights over a similar setup and took the 1000 watt light and set it up over 18 soil plants in 3 gallon pots in an 8x8x10 area. I find the 600 watt lights get the hottest so they cant be closer then 8 inches from the tops . The 1000 watter is ok at 8 inches away from tops with no heat issues and the 3 400 watters can be about 5 inches from the tops none have air cooled hoods just open refectors.I dont know if 220 would save you any money or not...and I achieved my 2-3 lbs with each setup yeah for me

Sooo.. does this mean everyone was right?? 220 vs 110 in the USA, no electrical savings. The difference in some peoples opinion is that you have to use better parts to run the 220 so the equipment lasts longer, I tend to agree. I know it is true for Restuarant Equipment. The heating elements on 110 equipment wear out fasted than the ones that operate on 220. VV

VictorVIcious said:

Sooo.. does this mean everyone was right?? 220 vs 110 in the USA, no electrical savings. VV

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yep, definitely no electrical savings. 1000 watts is 1kw no matter how much voltage its getting. a 1k watter is a 1k watter no matter how much current its drawing. lol seems kinda fucked up but theres a law that George Simon Ohm came up with called Ohms law, which states voltage(V(or E))=Current(I)xResistance(R) or more commonly seen as V(or E)=IR. then came the power law which states

Power(p)=Current(I)xVoltage(V) or P=IV

i guess what im trying to say is that you get charged(electric bills) by the Kwh or Power times Times. as long as the current and voltage are moved inversely proportional relative to each other then the power will remain the same. the only different between the two voltages is current draw. if your going 120V you will be drawing twice the amount of current as if you were 240v. for example..... actually no examples numbers confuse ppl....... in conclusion, the only difference between the two voltages is the voltage and current draw and power remains the same as long as your ballast is set up for the appropriate voltage. ya, dont take my word for it, as i am We Tarded... i hope i didnt lose you my friend!

There is an ADD a lamp thing that you add a light to your motor you can buy at hydro stores.

yeah but you have to also buy a second rail with a roller and the other thing called a robo arm is to short..I just made mine at home from cold rolled aluminum

im kinda in the same boat...
will an 8'X 2.5' flowering room, a 400hps and a light rail with 64 lolipops SoG give me 10g/plant??? how much light will the outside 2' (1' on eachside) lose since the rail covers 6' and which lolipops r better to have on the oustide?? the early weekers, or the later weekers??? i wanna achive 10g/plant but will be happy with 7g's and dont really wanna hook up a 2nd 400hps... opinions???

iv used muti light set ups iv used 400s 600s and 1000s i sold all my 400s and now only use 1000s and 600's the 400s just do not cut it, even 2x600w only just out do a 1000w. nothing will grow a main cola as big as a 1000w.

im telling you from personal experience are wasting your time going with 2 x 400w and not the 1000w

I do 1 1000watt with a liquid cooled light on a light mover track in my tent. 1000 watters are the only way to grow! I get 2-3 lbs per light/ per tent out of 35-40 plants and theyre all kolas . I made mistakes on everyone of those crops also. Im setting my goal 4lbs per light, noone believes i can but Im on my way considering I was getting 2 1/2lbs a year ago with just 1 1000watt light and no light rail out of 32 plants and just started pushing 1500ppm co2 in. I also dont like small nuggs, so I grow a lot of kolas, ill take a pic of the harvest in the next couple days