CFL to HPS Transition

[BONG0]

My plants are getting massive and i need to start flowering, i am planning on getting a 400 Watt HPS Within the next 3 to 4 weeks, My question is, will it have any negative effects if i start 12/12 now with 2 Warm CFLs and a 70 watt MH with a Reflecting hood, and then put the HPS in there within 3 weeks. and remove the CFLs and MH. :jointsmile:

[Cornelius]

well, you'll be in flower for 3 weeks without the powerful light necessary to produce nice buds, so if you want to harvest sooner but with a smaller yield, start flowering now. If you let your plants veg a little longer (maybe do some training?) you will get bigger plants flowering under a more powerful light, therefore nice fat buds.

you could try supercropping (http://www.drugs-forum.com/growfaq/1245.htm), it's easy and is supposed to really increase yield. the method in the link is kind of a mix between supercrop and LST, with some interesting results. you could grow some big branches if you wait to flower. also, it will decrease your vertical growth since the top chills while the side branches shoot out.

:bonghit:

[BONG0]

oh ok,so the minimul lumen output by the CFLs will stunt the growth operminantly? even if its flowerd under a 400 watt HPS for another 4 weeks or longer its bid production will still be stunted because of the inadiquate light during the first 3 weeks?

[faithless]

yeah, some modest fluors, like a plant store. they don't want their plants to get massive, they just want them to stay healthy.