need help on lights

OK I am in need so some help last night we have worked out how much money it is costing me to run my grow its working out to be £41.00 a month see link https://www.rollitup.org/newbie-central/332927-help-please-electric-rep.html#post4190373

its a lot more than i was hopeing for I use 2 300w cfls


now what lighting can I change to to keep the cost down

the size of the tent is 60CMX60CMX140CM

now what lights do I change to some thing like HPS LIGHT help

you could get a 400w hps, 600w is 600w no matter whats using it, so you need more effecent lights. On a related note, do you use normal halogen to light your house or do you have all cfls lighting your house? cuz switching would save a decent bit of money if you havent switched yet.

Yeah cfls are the shit

energy saving bulbs I use in the house every light is energy saving bulb

the 2 300w cfls are useing that much I can not belive it there post to be like 3p an hr to run there costing a lot more to run

maybe they are not the cause then? Im not sure what you mean completely but you should be able to figure out(should be on the bill) just how much 600w costs an hr and then times it by your light cycle and you'll get how much it costs per day. are you saying they are charging you more than they should for the watts your using or ??? cuz 600w will cost the same no matter how long your using it. maybe you are thinking of the bs number they put on the packs saying how much you'd save over a halogen bulb they put on em to sucker people in?

With the ebay 300W (10 inch 8U) blue cfl I have, it actually only uses 186W. So I expect that this setup (including fan) is easily less than £15 a month during veg (17/7). I would suggest you pop down to maplins and get an £8 power monitor to check whats what. Other than that I think try uSwitch.com and look for a new supplier.

im using 2 x 600watt hps( and assorted fans/extractors) and i'm not using £41 a month probably nearer £28, thats with Scottish Power. check your supplier costs, some of them are rip off merchants.

MJMMM said:

With the ebay 300W (10 inch 8U) blue cfl I have, it actually only uses 186W. So I expect that this setup (including fan) is easily less than £15 a month during veg (17/7). I would suggest you pop down to maplins and get an £8 power monitor to check whats what. Other than that I think try uSwitch.com and look for a new supplier.

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thanks this week I will go to maplins and get a power monitor to check whats what.

thanks I will look in to this

even if it was 41 a month, if that is too much money for growing you could just buy it from someone else. I'm not trying to be a d*** but it is going to cost you some cash to grow some good stash.

Ok, let me make sure I've got this right. You're saying that running two 300w cfls is costing you the equivelant of $65 (assuming an exchange rate of 1.50 pounds = $1) a month? Either your electrical rates are outrageous, or you're making an error in your calculations.

I run a 600w 12 hours a day, a 400w 18 hours a day, and 4 bulb bank of t8's (think it totals about 100w) round the clock, and it only runs me $50 a month. The formula is wattage/1000 x kilowatt rate per hour ( the rate should listed on your electric bill), which tells you how much it costs to run the light per hour. Multiply that by the number of hours the light is used per day, then again by the number of days in the month and you have your total electrical cost.

thanks I will give it a go I will call the elc company and find out how much they are chargeing

Im pretty sure those 300w CFL's use about 323w actually because they're a 300w bulb and the ballast in the bulb uses about 23(ish)w too. My 200w one was running at 223w.