Hi guys, I have 2 600 watt dimmable ballasts that have a 50%, 60%, 75% and 100% settings. My little ones are about 3 weeks old and about 3inches tall and under the MH bulbs. My question is should I be running the ballasts at full blast (100%) from the start, or being so young and in vegetative mode is running them at 50 or 60% more than enough and wait till there bigger or even wait till flowering to turn it up to 100%? Just not sure if the extra power/lumens will speed growth or not at this age and period or if the extra lumens are wasted.. Thanks for your time
I run 600w dimmables and mine start at 400w, 400w f 600w 600wf I start my clones under 400w then after a week go 400wf till flip then i flower under 600w for 4wks then full blast 600wf for last few weeks it works 4 me m8 just put ya hand under the light at top off your plants if its to hot for your hand its to hot for your plants . HTH , have a nice day . KP