cfl wattage

guys iv been looking on ebay at cfl's and im kinda confused. allot of them seem to say 30w > 150w...or 30w same as 150w....how do you judge which one is which? i added a link to show what i mean i know its a stupid question but i cant get my head around it. wap.ebay.co.uk/Pages/ViewItem.aspx?aid=190469967508&emvAD=240x259&sv=15 0w%20cfl%20bulb&emvcc=0

The first # is the actuall wattage, and the second number is what a regular lightbulb equivalent would be to the cfl.

So that first one (30w > 150w) means the cfl uses 30w, but its light output is roughly the same as a 150w "normal" bulb.

Hope that helps.

Be sure to also note the kelvins.

The 6500K work great for vegging.

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Originally Posted by firstfist

The first # is the actuall wattage, and the second number is what a regular lightbulb equivalent would be to the cfl.

So that first one (30w > 150w) means the cfl uses 30w, but its light output is roughly the same as a 150w "normal" bulb.

Hope that helps.

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so the link i added tht bulb is a 125w 6500k cfl blue which would be ok to veg if i then used a 175w or 200w 2700k red bulb to flower would i get a good crop? like decent strenght buds? thanks for the input lad

Quote:

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Originally Posted by firstfist

The first # is the actuall wattage, and the second number is what a regular lightbulb equivalent would be to the cfl.

So that first one (30w > 150w) means the cfl uses 30w, but its light output is roughly the same as a 150w "normal" bulb.

Hope that helps.

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so the bulb in the link i added is a 125w 6700k blue spectrum which will be ok to veg if i then used a 175w or 200w 2700k red spectrum bulb to flower would i get a nice crop? like decent strength buds? cheers for the input lad

Quote:

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Originally Posted by irishbud

so the bulb in the link i added is a 125w 6700k blue spectrum which will be ok to veg if i then used a 175w or 200w 2700k red spectrum bulb to flower would i get a nice crop? like decent strength buds? cheers for the input lad

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There's a lot of factors that come in to play when asking about producing a nice crop. How many plants? How much space? Ventilation? How many lights? Lumens per sq. foot?

When using CFL's to grow, I suggest using more than you think you need to spread them out evenly among the plants for even growth. CFL's will grow a very satisfying crop but you have to be prepared to move lights daily because the CFL's do burn. You also want to shoot for more lumens than called for. The impact of CFL lighting is nothing like HPS, so make sure you keep them very close without touching. You will get very strong and rapid growth the closer the lights are.

Shoot for a minimum of 4000 Lumens per sq. ft....you will be very satisfied!!!

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Originally Posted by jon420

There's a lot of factors that come in to play when asking about producing a nice crop. How many plants? How much space? Ventilation? How many lights? Lumens per sq. foot?

When using CFL's to grow, I suggest using more than you think you need to spread them out evenly among the plants for even growth. CFL's will grow a very satisfying crop but you have to be prepared to move lights daily because the CFL's do burn. You also want to shoot for more lumens than called for. The impact of CFL lighting is nothing like HPS, so make sure you keep them very close without touching. You will get very strong and rapid growth the closer the lights are.

Shoot for a minimum of 4000 Lumens per sq. ft....you will be very satisfied!!!

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im goin to grow 1 plant at a time my setup im planning is a grow box 80x80x120cm split in half 1 150w 6400k cfl to veg 1 200w 2700k red cfl to flower grown in soil with advanced nutrients super tea while in veg and big bud nutrients to flower. would tht be enough lighting for 1 plant at a time?

CFL's are cheap. So you really want to splurge a little when buying them. The local hardware store has 68w CFLs for $15 rated at 2700K. Or for $50 you could always get a 125w Feliz and a mogul socket cord. But shopping online, it's hard to tell half the time. Companies mislead too often with advertising.

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Originally Posted by irishbud

im goin to grow 1 plant at a time my setup im planning is a grow box 80x80x120cm split in half 1 150w 6400k cfl to veg 1 200w 2700k red cfl to flower grown in soil with advanced nutrients super tea while in veg and big bud nutrients to flower. would tht be enough lighting for 1 plant at a time?

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If those are the actual wattages, then yes that's enough to get a reasonable amount of bud as long as the plant isn't too large. I managed 2oz a plant using 125w of light per plant. If you add more light you will get more bud, with a 250w 2700k for flower you should be able to get 4oz a plant.

I have found 125w 6500k is plenty enough to veg one plant, I don't plan to go up to to 250 for veg. I have gone up to 250 for flower though, as I know it makes a big difference.

As "phatjay" said, if that is the actual wattage you should be fine but it depends on the strain too. His estimate could be totally different than what you actually produce. I am not saying Phatjay is wrong here but it does depend on the strain too.

As for your lights. I would pay more attention to the lumens that the plant will recieve. If you can supply a min. of 3500 lumens to the plant during veg you should have a nice grow. If you can up those lumens during flowering to a min. of 4000 lumens you should have a decent crop. I always suggest using more CFL's than you think you need because they are not quite as powerful as an HID light. Another great tip for CFL growing is to supply light to the sides of the plant too. I know a lot of people that say it makes no difference but the light from the CFL is not very powerful and does not reach the inner and lower portion of the plant as well as an HID light.

I cuurently have 40,000 lumens in CFL's in a 3ftx4ftx7ft area and two beautiful full figured ladies. This is my first documented study on CFL growth and I think many people will be suprised when they see what is being produced by CFL's only. Grow log to come soon....