In another forum I was given a really helpful chart that answers a lot of questions when it comes to choose lamps for your place. Here it is:
2 there's an afghan kush ryder and a Pakistan ryder, in a 30ltr pot, they are massive! Just started flowering and is getting smelly, I'll follow this grow to give you tips and advice where I can, I advise you have a go at the afghan kush its so hardy and survives a lot of things most strains don't, and I seem to be having problems opening pictures aswell, I think moderators are working on it :Sharing One:
Hi ATPSYGGreat charts you posted, thanks.
You have great space there, i recommend (if you're in the UK) Plug and Grow bulbs, they have extra-long tubes so more bang for your buck. I don't know about USA brands.
You're fine to use 2700K flowering all the way through, why not do more than one plant since you have all that space, that way the electricity you pay for is giving you a better return ?
Welcome to AFN by the way
steely
The smell can be VERY noticeable. You really should invest in a fan and filter, you don't have to spend loads of money on them. The one thing oyu don't want is someone smelling them then reporting you.
As for the HPS and MH lamps, i've never sued them but Sont and Osram are good makes in general. Lots of people choose Lumatek bulbs.
Bear in mind that HPS and MH throw out A TON of heat, which will add more stuff to cope with in your system. Obviously your extractor fan will extract the hot air, but you also have to have a fairly large gap between the lamp and the plants, whereas CFL can be roight up close.
I would go for a 250 watt P&G CFL, i have had great results with them, getting an ounce per plant from four plants, each in 2L pots :
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Don't know why its posted 2 pics but you get the idea.
steely