Indoor when to switch from mh to hps ?

[hairyscotsman]

I am currently growing sweet seeds third gen mixture. After which day approx should i switch to the hps. There are a 10 day difference in the timings so looking to keep the mh on as long as possible to give the late starters a longer mh veg.

 

[Kurruptklown]

i was wondering the same thing, My oldest girls are 5 weeks was thinking of doing it at the start of week 6?

 

[The Squid]

IMO it doesn't matter. You could use both the whole time or the HPS the whole time, start to finish. The whole switching of lights with Autos to me is overrated. Just my

 

[grindin]

i switched around week 4 or 5 last grow but did hps all the way through first grow with the same results

 

[GoTgReEn]

i switched around week 4 or 5 last grow but did hps all the way through first grow with the same results

I would av to agree with you dude! 4 to 5 weeks :smoke:

 

[JasL]

You would do just as good if you used hps all the way through. MH is way hotter anyway and you don't get as many lumens per watt. Get a bulb with enhanced blue spectrum and you can do away with that MH.