electricity costs ?

[Citizens Aux PD]

Personally, if I was going to be paying for 1200watts of anything, I would go with the HPS, depending on the space and ability to get rid of the hot air. A watt is a watt, and 1200 watts of HPS is going to give you far better results than 1200watts of CFL, again depending on your ability to keep the enviroment under control with the heat the lamps bring.
Another thing to consider is that any HPS light, uses roughly 10% more than its rating to power the ballast, so a 600watt lamp actually uses roughly 660watts.

EDIT

I see it's a closet grow. What are the dimensions of the closet?

Ed Rosenthal says "[FONT=Arial, Helvetica, sans-serif]Although fluorescents produce only about 75% of the light per watt that the HPS does, the amount of light usable by the plant is equal or probably higher with the fluorescents."

[/FONT]
[FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif]"Although the 150 watt HPS is a bit more efficient that the CFLs in total output, watt for watt the fluorescents provide as much useful light as the HPS lamp. Heat is another consideration. The HPS runs much hotter and emits more heat than the fluorescents."

[/FONT]He says it in this thread: [/FONT]https://www.icmag.com/ic/showthread.php?t=112217

 

[al70]

NI must be the most watched place in the UK so I understand your concerns but are they going to think it more suspicious seeing it leaving your place at night than in the day?

Where do you plan to vent from?

from what I understand harry, the FLIR from the copters is not as effective during daylight, correct me if i'm wrong please,,,

 

[al70]

Personally, if I was going to be paying for 1200watts of anything, I would go with the HPS, depending on the space and ability to get rid of the hot air. A watt is a watt, and 1200 watts of HPS is going to give you far better results than 1200watts of CFL, again depending on your ability to keep the enviroment under control with the heat the lamps bring.
Another thing to consider is that any HPS light, uses roughly 10% more than its rating to power the ballast, so a 600watt lamp actually uses roughly 660watts.

EDIT

I see it's a closet grow. What are the dimensions of the closet?

hi harry g the 1200watt is for my next run, is it goin to cost as much electric wise if I go hps ?

 

[al70]

NI must be the most watched place in the UK so I understand your concerns but are they going to think it more suspicious seeing it leaving your place at night than in the day?

Where do you plan to vent from?

as far as I know harry, the FLIR from the copters is not as effective during the day, timing is everything,,,,

 

[Harry Gypsna]

Ed Rosenthal says "[FONT=Arial, Helvetica, sans-serif]Although fluorescents produce only about 75% of the light per watt that the HPS does, the amount of light usable by the plant is equal or probably higher with the fluorescents."

[/FONT]
[FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif]"Although the 150 watt HPS is a bit more efficient that the CFLs in total output, watt for watt the fluorescents provide as much useful light as the HPS lamp. Heat is another consideration. The HPS runs much hotter and emits more heat than the fluorescents."

[/FONT]He says it in this thread: [/FONT]https://www.icmag.com/ic/showthread.php?t=112217

This may be true right at the top of the plant, but the depth pentration of fluros is pitiful compared to HIDs.

2 clones, evenly sized, potted at the same time, one with fluro and one with HID, the HID plant wall have more bud overall, and the quality of the bud lower down the plant, will be worlds ahead of the lowers on the fluro plant. SCROG was originally developed for growing with fluros, because anything but the very tops is scraggly larf when plants are grown normally using fluros.

The heat thing, I did say you have to be able to control the enviroment.

 

[Harry Lime]

from what I understand harry, the FLIR from the copters is not as effective during daylight, correct me if i'm wrong please,,,

I dunno man, ya got me there. I do know the electric supply people fly copters around here in the day looking for hot spots on their cables though.

And a watt is a watt, whatever you're powering with it.

 

[Citizens Aux PD]

This may be true right at the top of the plant, but the depth pentration of fluros is pitiful compared to HIDs.

2 clones, evenly sized, potted at the same time, one with fluro and one with HID, the HID plant wall have more bud overall, and the quality of the bud lower down the plant, will be worlds ahead of the lowers on the fluro plant. SCROG was originally developed for growing with fluros, because anything but the very tops is scraggly larf when plants are grown normally using fluros.

The heat thing, I did say you have to be able to control the enviroment.

You make sense, Harry G.

I shall avoid the penetration issue with bare cfl bulbs.

 

[Harry Gypsna]

hi harry g the 1200watt is for my next run, is it goin to cost as much electric wise if I go hps ?

Well, 1200watts of HPS will actually use roughly 1320 watts, so will cost slightly more than the CFLs, but as long as you can manage the heat, the results will piss on the results from CFL, depending on the size of the space.
A watt is a watt, 100 watts of CFL will cost exactly the same as 100 watts of Sodium. Having said that, CFLs will allow the use of smaller fans. Never forget that your fans use electricity too and these should be factored into your calculations, although compared to the lights, the amount of electricity they use is minimal.

 

[Hazyfontazy]

learning light to height ratios is probably the best lesson a grower can learn

 

[al70]

I dunno man, ya got me there. I do know the electric supply people fly copters around here in the day looking for hot spots on their cables though.

And a watt is a watt, whatever you're powering with it.

so hps is the way to go harry ye ?, i'll take a chance on the flyers,,,,ye opened my eyes on the wattage,

 

[al70]

learning light to height ratios is probably the best lesson a grower can learn

how low can I go ,,,,,,,respect man,,,,,

 

[al70]

This may be true right at the top of the plant, but the depth pentration of fluros is pitiful compared to HIDs.

2 clones, evenly sized, potted at the same time, one with fluro and one with HID, the HID plant wall have more bud overall, and the quality of the bud lower down the plant, will be worlds ahead of the lowers on the fluro plant. SCROG was originally developed for growing with fluros, because anything but the very tops is scraggly larf when plants are grown normally using fluros.

The heat thing, I did say you have to be able to control the enviroment.

just a quote my friend..

 

[Harry Gypsna]

so hps is the way to go harry ye ?, i'll take a chance on the flyers,,,,ye opened my eyes on the wattage,

As long as you can control the heat, and the lights are the right amount for the space then yes, I would choose HPS every time.

Regarding the copters, AFAIK, it makes no difference to the FLIR whether it is day or night as the FLIR detects heat not light and shows thigs that are warmer than the things around them.

 

[al70]

what if it's hotter outside during the day???????? is it as effective???

 

[al70]

Ed Rosenthal says "[FONT=Arial, Helvetica, sans-serif]Although fluorescents produce only about 75% of the light per watt that the HPS does, the amount of light usable by the plant is equal or probably higher with the fluorescents."[/FONT]


[FONT=Arial, Helvetica, sans-serif][FONT=Arial, Helvetica, sans-serif]"Although the 150 watt HPS is a bit more efficient that the CFLs in total output, watt for watt the fluorescents provide as much useful light as the HPS lamp. Heat is another consideration. The HPS runs much hotter and emits more heat than the fluorescents."[/FONT]

He says it in this thread: [/FONT]https://www.icmag.com/ic/showthread.php?t=112217

I hear ye man,, not ruling ye out yet,, still lookin 4 knowledge,,, it's free,,

 

[Citizens Aux PD]

I hear ye man,, not ruling ye out yet,, still lookin 4 knowledge,,, it's free,,

My personal preference would be HPS if I could control the heat, but I cannot in my current situation.

I've tried LEDs but they were horizontals and they did not penetrate beneath the tops.

So now I am using 2 bare bulb 125 watt cfls in a vertical position with a 6 inch fan @ 15 watts.

 

[al70]

i'm thinking one 600 hps on a moving rail, hang my cfl's where necessary in my 8x4 tent wadya think C.A PD ??

 

[Citizens Aux PD]

Probably won't need the CFLs, mate. HPS kick fucken ass. Long ago I had a 250 watt HPS and would grow solid, single stemmed 18 inch donkey dicks.

Instead of placing CFLs here & there, place mini fans wherever you can (the 6 inch kind). My 250 was hot as hell so I can imagine a 600 would be 3 times as hot.

 

[OrganicBuds]

Your electricity is soooooooo cheap. Don't ever move to Cali

 

[Harry Gypsna]

what if it's hotter outside during the day???????? is it as effective???

Any rise in outdoor temp will raise the temp in your house, and so in your growroom too unless you have aircon(which still has to move the heat somewhere and looks a bit suss in November in these cold Rainy Islands) and are insulated to the very highest level. The lights will always make the growroom temp higher than the ambient temperature so the heat you throw out, will always be warmer than the outside air.
FLIR sees the difference in the temperature of things, so whether it is day or night, it will always see when something is hotter than everything else around it.
You just have to be careful about where you pump the air out.