lighting guidance plz

hi i using a full room sized 3.5meters x 6meters would six 6oowatt hps do fine im kitting it all out in dwc ??? and how many plants should i use im gona veg for 5 weeks thanks

If your planning on utilizeing the whole room for flowering your going to need a lot more lamps. A 600watt hps will cover about 1 square meter proly need about 9.

i would do 6 plant and hang light vertical

ok thanks was going corden on 2meters for vegging purposes, how many lights do you rec 8? and how many plants i want massive yeild ive grown a bit b4 using two eco systems bt it a pain in the ass

more like eight 1000 watt lights. sorry, don't know the metric equivalents but minimum light for weed is 3,000 lumens per square ft with the recommended amount 7,000 - 10,000 lumens per square ft. six 600 watt lights gives you about 2,500 lumens per square foot. eight 1000 watt lights gives you 5,000 lumens per square foot.

orite how come ppl use 400watt hpsin one meter sq flowering i thought by using 8 600wt hps each one meter sq wud b great surrounded in reflective mylar

irishman2010 said:

orite how come ppl use 400watt hpsin one meter sq flowering i thought by using 8 600wt hps each one meter sq wud b great surrounded in reflective mylar

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a 600 watt light is great for one square meter but you have 21 square meters not 8.

the people who use 400 watt for a square meter are shooting for 3,000 lumens per square foot.

see https://www.rollitup.org/grow-room-design-setup/311470-how-can-we-not-know.html if you're interested in a post on choosing the right lighting.